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(((2x+1)(x-3))/x+11)-((2x^2-5x-3)/3-x)=0 la ecuación

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Solución numérica:

Buscar la solución numérica en el intervalo [, ]

Solución

Ha introducido [src]
                              2                  
(2*x + 1)*(x - 3)          2*x  - 5*x - 3        
----------------- + 11 + - -------------- + x = 0
        x                        3               
$$\left(11 + \frac{\left(x - 3\right) \left(2 x + 1\right)}{x}\right) + \left(x - \frac{\left(2 x^{2} - 5 x\right) - 3}{3}\right) = 0$$
Gráfica
Respuesta rápida [src]
               /                   1                   \     /      /                   1                   \                                                                  \                                                                  
         161*re|---------------------------------------|     |161*im|---------------------------------------|              /    /     ______\\              /    /     ______\\|              /    /     ______\\              /    /     ______\\
               |                     __________________|     |      |                     __________________|              |    |27*\/ 3202 ||              |    |27*\/ 3202 |||              |    |27*\/ 3202 ||              |    |27*\/ 3202 ||
               |/          ___\     /           ______ |     |      |/          ___\     /           ______ |              |atan|-----------||              |atan|-----------|||              |atan|-----------||              |atan|-----------||
               ||  1   I*\/ 3 |    /  613   I*\/ 3202  |     |      ||  1   I*\/ 3 |    /  613   I*\/ 3202  |     _____    |    \    2452   /|     _____    |    \    2452   /||     _____    |    \    2452   /|     _____    |    \    2452   /|
               ||- - - -------|*3 /   --- + ---------- |     |      ||- - - -------|*3 /   --- + ---------- |   \/ 322 *sin|-----------------|   \/ 966 *cos|-----------------||   \/ 322 *cos|-----------------|   \/ 966 *sin|-----------------|
     7         \\  2      2   / \/     27       4      /     |      \\  2      2   / \/     27       4      /              \        3        /              \        3        /|              \        3        /              \        3        /
x1 = - + ----------------------------------------------- + I*|----------------------------------------------- - ------------------------------ - ------------------------------| - ------------------------------ + ------------------------------
     3                          18                           \                       18                                       12                               12              /                 12                               12              
$$x_{1} = - \frac{\sqrt{322} \cos{\left(\frac{\operatorname{atan}{\left(\frac{27 \sqrt{3202}}{2452} \right)}}{3} \right)}}{12} + \frac{161 \operatorname{re}{\left(\frac{1}{\left(- \frac{1}{2} - \frac{\sqrt{3} i}{2}\right) \sqrt[3]{\frac{613}{27} + \frac{\sqrt{3202} i}{4}}}\right)}}{18} + \frac{\sqrt{966} \sin{\left(\frac{\operatorname{atan}{\left(\frac{27 \sqrt{3202}}{2452} \right)}}{3} \right)}}{12} + \frac{7}{3} + i \left(- \frac{\sqrt{966} \cos{\left(\frac{\operatorname{atan}{\left(\frac{27 \sqrt{3202}}{2452} \right)}}{3} \right)}}{12} - \frac{\sqrt{322} \sin{\left(\frac{\operatorname{atan}{\left(\frac{27 \sqrt{3202}}{2452} \right)}}{3} \right)}}{12} + \frac{161 \operatorname{im}{\left(\frac{1}{\left(- \frac{1}{2} - \frac{\sqrt{3} i}{2}\right) \sqrt[3]{\frac{613}{27} + \frac{\sqrt{3202} i}{4}}}\right)}}{18}\right)$$
               /                   1                   \     /      /                   1                   \                                                                  \                                                                  
         161*re|---------------------------------------|     |161*im|---------------------------------------|              /    /     ______\\              /    /     ______\\|              /    /     ______\\              /    /     ______\\
               |                     __________________|     |      |                     __________________|              |    |27*\/ 3202 ||              |    |27*\/ 3202 |||              |    |27*\/ 3202 ||              |    |27*\/ 3202 ||
               |/          ___\     /           ______ |     |      |/          ___\     /           ______ |              |atan|-----------||              |atan|-----------|||              |atan|-----------||              |atan|-----------||
               ||  1   I*\/ 3 |    /  613   I*\/ 3202  |     |      ||  1   I*\/ 3 |    /  613   I*\/ 3202  |     _____    |    \    2452   /|     _____    |    \    2452   /||     _____    |    \    2452   /|     _____    |    \    2452   /|
               ||- - + -------|*3 /   --- + ---------- |     |      ||- - + -------|*3 /   --- + ---------- |   \/ 322 *sin|-----------------|   \/ 966 *cos|-----------------||   \/ 322 *cos|-----------------|   \/ 966 *sin|-----------------|
     7         \\  2      2   / \/     27       4      /     |      \\  2      2   / \/     27       4      /              \        3        /              \        3        /|              \        3        /              \        3        /
x2 = - + ----------------------------------------------- + I*|----------------------------------------------- - ------------------------------ + ------------------------------| - ------------------------------ - ------------------------------
     3                          18                           \                       18                                       12                               12              /                 12                               12              
$$x_{2} = \frac{161 \operatorname{re}{\left(\frac{1}{\left(- \frac{1}{2} + \frac{\sqrt{3} i}{2}\right) \sqrt[3]{\frac{613}{27} + \frac{\sqrt{3202} i}{4}}}\right)}}{18} - \frac{\sqrt{322} \cos{\left(\frac{\operatorname{atan}{\left(\frac{27 \sqrt{3202}}{2452} \right)}}{3} \right)}}{12} - \frac{\sqrt{966} \sin{\left(\frac{\operatorname{atan}{\left(\frac{27 \sqrt{3202}}{2452} \right)}}{3} \right)}}{12} + \frac{7}{3} + i \left(\frac{161 \operatorname{im}{\left(\frac{1}{\left(- \frac{1}{2} + \frac{\sqrt{3} i}{2}\right) \sqrt[3]{\frac{613}{27} + \frac{\sqrt{3202} i}{4}}}\right)}}{18} - \frac{\sqrt{322} \sin{\left(\frac{\operatorname{atan}{\left(\frac{27 \sqrt{3202}}{2452} \right)}}{3} \right)}}{12} + \frac{\sqrt{966} \cos{\left(\frac{\operatorname{atan}{\left(\frac{27 \sqrt{3202}}{2452} \right)}}{3} \right)}}{12}\right)$$
              __________________                             
             /           ______                              
     7      /  613   I*\/ 3202                161            
x3 = - + 3 /   --- + ----------  + --------------------------
     3   \/     27       4                 __________________
                                          /           ______ 
                                         /  613   I*\/ 3202  
                                   18*3 /   --- + ---------- 
                                      \/     27       4      
$$x_{3} = \frac{7}{3} + \frac{161}{18 \sqrt[3]{\frac{613}{27} + \frac{\sqrt{3202} i}{4}}} + \sqrt[3]{\frac{613}{27} + \frac{\sqrt{3202} i}{4}}$$
x3 = 7/3 + 161/(18*(613/27 + sqrt(3202)*i/4)^(1/3)) + (613/27 + sqrt(3202)*i/4)^(1/3)
Suma y producto de raíces [src]
suma
          /                   1                   \     /      /                   1                   \                                                                  \                                                                               /                   1                   \     /      /                   1                   \                                                                  \                                                                                                                             
    161*re|---------------------------------------|     |161*im|---------------------------------------|              /    /     ______\\              /    /     ______\\|              /    /     ______\\              /    /     ______\\       161*re|---------------------------------------|     |161*im|---------------------------------------|              /    /     ______\\              /    /     ______\\|              /    /     ______\\              /    /     ______\\                                                           
          |                     __________________|     |      |                     __________________|              |    |27*\/ 3202 ||              |    |27*\/ 3202 |||              |    |27*\/ 3202 ||              |    |27*\/ 3202 ||             |                     __________________|     |      |                     __________________|              |    |27*\/ 3202 ||              |    |27*\/ 3202 |||              |    |27*\/ 3202 ||              |    |27*\/ 3202 ||                                                           
          |/          ___\     /           ______ |     |      |/          ___\     /           ______ |              |atan|-----------||              |atan|-----------|||              |atan|-----------||              |atan|-----------||             |/          ___\     /           ______ |     |      |/          ___\     /           ______ |              |atan|-----------||              |atan|-----------|||              |atan|-----------||              |atan|-----------||                                                           
          ||  1   I*\/ 3 |    /  613   I*\/ 3202  |     |      ||  1   I*\/ 3 |    /  613   I*\/ 3202  |     _____    |    \    2452   /|     _____    |    \    2452   /||     _____    |    \    2452   /|     _____    |    \    2452   /|             ||  1   I*\/ 3 |    /  613   I*\/ 3202  |     |      ||  1   I*\/ 3 |    /  613   I*\/ 3202  |     _____    |    \    2452   /|     _____    |    \    2452   /||     _____    |    \    2452   /|     _____    |    \    2452   /|            __________________                             
          ||- - - -------|*3 /   --- + ---------- |     |      ||- - - -------|*3 /   --- + ---------- |   \/ 322 *sin|-----------------|   \/ 966 *cos|-----------------||   \/ 322 *cos|-----------------|   \/ 966 *sin|-----------------|             ||- - + -------|*3 /   --- + ---------- |     |      ||- - + -------|*3 /   --- + ---------- |   \/ 322 *sin|-----------------|   \/ 966 *cos|-----------------||   \/ 322 *cos|-----------------|   \/ 966 *sin|-----------------|           /           ______                              
7         \\  2      2   / \/     27       4      /     |      \\  2      2   / \/     27       4      /              \        3        /              \        3        /|              \        3        /              \        3        /   7         \\  2      2   / \/     27       4      /     |      \\  2      2   / \/     27       4      /              \        3        /              \        3        /|              \        3        /              \        3        /   7      /  613   I*\/ 3202                161            
- + ----------------------------------------------- + I*|----------------------------------------------- - ------------------------------ - ------------------------------| - ------------------------------ + ------------------------------ + - + ----------------------------------------------- + I*|----------------------------------------------- - ------------------------------ + ------------------------------| - ------------------------------ - ------------------------------ + - + 3 /   --- + ----------  + --------------------------
3                          18                           \                       18                                       12                               12              /                 12                               12                 3                          18                           \                       18                                       12                               12              /                 12                               12                 3   \/     27       4                 __________________
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     /           ______ 
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    /  613   I*\/ 3202  
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              18*3 /   --- + ---------- 
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 \/     27       4      
$$\left(\frac{7}{3} + \frac{161}{18 \sqrt[3]{\frac{613}{27} + \frac{\sqrt{3202} i}{4}}} + \sqrt[3]{\frac{613}{27} + \frac{\sqrt{3202} i}{4}}\right) + \left(\left(- \frac{\sqrt{322} \cos{\left(\frac{\operatorname{atan}{\left(\frac{27 \sqrt{3202}}{2452} \right)}}{3} \right)}}{12} + \frac{161 \operatorname{re}{\left(\frac{1}{\left(- \frac{1}{2} - \frac{\sqrt{3} i}{2}\right) \sqrt[3]{\frac{613}{27} + \frac{\sqrt{3202} i}{4}}}\right)}}{18} + \frac{\sqrt{966} \sin{\left(\frac{\operatorname{atan}{\left(\frac{27 \sqrt{3202}}{2452} \right)}}{3} \right)}}{12} + \frac{7}{3} + i \left(- \frac{\sqrt{966} \cos{\left(\frac{\operatorname{atan}{\left(\frac{27 \sqrt{3202}}{2452} \right)}}{3} \right)}}{12} - \frac{\sqrt{322} \sin{\left(\frac{\operatorname{atan}{\left(\frac{27 \sqrt{3202}}{2452} \right)}}{3} \right)}}{12} + \frac{161 \operatorname{im}{\left(\frac{1}{\left(- \frac{1}{2} - \frac{\sqrt{3} i}{2}\right) \sqrt[3]{\frac{613}{27} + \frac{\sqrt{3202} i}{4}}}\right)}}{18}\right)\right) + \left(\frac{161 \operatorname{re}{\left(\frac{1}{\left(- \frac{1}{2} + \frac{\sqrt{3} i}{2}\right) \sqrt[3]{\frac{613}{27} + \frac{\sqrt{3202} i}{4}}}\right)}}{18} - \frac{\sqrt{322} \cos{\left(\frac{\operatorname{atan}{\left(\frac{27 \sqrt{3202}}{2452} \right)}}{3} \right)}}{12} - \frac{\sqrt{966} \sin{\left(\frac{\operatorname{atan}{\left(\frac{27 \sqrt{3202}}{2452} \right)}}{3} \right)}}{12} + \frac{7}{3} + i \left(\frac{161 \operatorname{im}{\left(\frac{1}{\left(- \frac{1}{2} + \frac{\sqrt{3} i}{2}\right) \sqrt[3]{\frac{613}{27} + \frac{\sqrt{3202} i}{4}}}\right)}}{18} - \frac{\sqrt{322} \sin{\left(\frac{\operatorname{atan}{\left(\frac{27 \sqrt{3202}}{2452} \right)}}{3} \right)}}{12} + \frac{\sqrt{966} \cos{\left(\frac{\operatorname{atan}{\left(\frac{27 \sqrt{3202}}{2452} \right)}}{3} \right)}}{12}\right)\right)\right)$$
=
                                                                 /                   1                   \         /                   1                   \     /      /                   1                   \                                                                  \     /      /                   1                   \                                                                  \                                 
                                                           161*re|---------------------------------------|   161*re|---------------------------------------|     |161*im|---------------------------------------|              /    /     ______\\              /    /     ______\\|     |161*im|---------------------------------------|              /    /     ______\\              /    /     ______\\|              /    /     ______\\
                                                                 |                     __________________|         |                     __________________|     |      |                     __________________|              |    |27*\/ 3202 ||              |    |27*\/ 3202 |||     |      |                     __________________|              |    |27*\/ 3202 ||              |    |27*\/ 3202 |||              |    |27*\/ 3202 ||
                                                                 |/          ___\     /           ______ |         |/          ___\     /           ______ |     |      |/          ___\     /           ______ |              |atan|-----------||              |atan|-----------|||     |      |/          ___\     /           ______ |              |atan|-----------||              |atan|-----------|||              |atan|-----------||
         __________________                                      ||  1   I*\/ 3 |    /  613   I*\/ 3202  |         ||  1   I*\/ 3 |    /  613   I*\/ 3202  |     |      ||  1   I*\/ 3 |    /  613   I*\/ 3202  |     _____    |    \    2452   /|     _____    |    \    2452   /||     |      ||  1   I*\/ 3 |    /  613   I*\/ 3202  |     _____    |    \    2452   /|     _____    |    \    2452   /||     _____    |    \    2452   /|
        /           ______                                       ||- - + -------|*3 /   --- + ---------- |         ||- - - -------|*3 /   --- + ---------- |     |      ||- - + -------|*3 /   --- + ---------- |   \/ 322 *sin|-----------------|   \/ 966 *cos|-----------------||     |      ||- - - -------|*3 /   --- + ---------- |   \/ 322 *sin|-----------------|   \/ 966 *cos|-----------------||   \/ 322 *cos|-----------------|
       /  613   I*\/ 3202                161                     \\  2      2   / \/     27       4      /         \\  2      2   / \/     27       4      /     |      \\  2      2   / \/     27       4      /              \        3        /              \        3        /|     |      \\  2      2   / \/     27       4      /              \        3        /              \        3        /|              \        3        /
7 + 3 /   --- + ----------  + -------------------------- + ----------------------------------------------- + ----------------------------------------------- + I*|----------------------------------------------- - ------------------------------ + ------------------------------| + I*|----------------------------------------------- - ------------------------------ - ------------------------------| - ------------------------------
    \/     27       4                 __________________                          18                                                18                           \                       18                                       12                               12              /     \                       18                                       12                               12              /                 6               
                                     /           ______                                                                                                                                                                                                                                                                                                                                                                                      
                                    /  613   I*\/ 3202                                                                                                                                                                                                                                                                                                                                                                                       
                              18*3 /   --- + ----------                                                                                                                                                                                                                                                                                                                                                                                      
                                 \/     27       4                                                                                                                                                                                                                                                                                                                                                                                           
$$- \frac{\sqrt{322} \cos{\left(\frac{\operatorname{atan}{\left(\frac{27 \sqrt{3202}}{2452} \right)}}{3} \right)}}{6} + \frac{161 \operatorname{re}{\left(\frac{1}{\left(- \frac{1}{2} + \frac{\sqrt{3} i}{2}\right) \sqrt[3]{\frac{613}{27} + \frac{\sqrt{3202} i}{4}}}\right)}}{18} + \frac{161 \operatorname{re}{\left(\frac{1}{\left(- \frac{1}{2} - \frac{\sqrt{3} i}{2}\right) \sqrt[3]{\frac{613}{27} + \frac{\sqrt{3202} i}{4}}}\right)}}{18} + 7 + \frac{161}{18 \sqrt[3]{\frac{613}{27} + \frac{\sqrt{3202} i}{4}}} + i \left(- \frac{\sqrt{966} \cos{\left(\frac{\operatorname{atan}{\left(\frac{27 \sqrt{3202}}{2452} \right)}}{3} \right)}}{12} - \frac{\sqrt{322} \sin{\left(\frac{\operatorname{atan}{\left(\frac{27 \sqrt{3202}}{2452} \right)}}{3} \right)}}{12} + \frac{161 \operatorname{im}{\left(\frac{1}{\left(- \frac{1}{2} - \frac{\sqrt{3} i}{2}\right) \sqrt[3]{\frac{613}{27} + \frac{\sqrt{3202} i}{4}}}\right)}}{18}\right) + i \left(\frac{161 \operatorname{im}{\left(\frac{1}{\left(- \frac{1}{2} + \frac{\sqrt{3} i}{2}\right) \sqrt[3]{\frac{613}{27} + \frac{\sqrt{3202} i}{4}}}\right)}}{18} - \frac{\sqrt{322} \sin{\left(\frac{\operatorname{atan}{\left(\frac{27 \sqrt{3202}}{2452} \right)}}{3} \right)}}{12} + \frac{\sqrt{966} \cos{\left(\frac{\operatorname{atan}{\left(\frac{27 \sqrt{3202}}{2452} \right)}}{3} \right)}}{12}\right) + \sqrt[3]{\frac{613}{27} + \frac{\sqrt{3202} i}{4}}$$
producto
/          /                   1                   \     /      /                   1                   \                                                                  \                                                                  \ /          /                   1                   \     /      /                   1                   \                                                                  \                                                                  \                                                           
|    161*re|---------------------------------------|     |161*im|---------------------------------------|              /    /     ______\\              /    /     ______\\|              /    /     ______\\              /    /     ______\\| |    161*re|---------------------------------------|     |161*im|---------------------------------------|              /    /     ______\\              /    /     ______\\|              /    /     ______\\              /    /     ______\\|                                                           
|          |                     __________________|     |      |                     __________________|              |    |27*\/ 3202 ||              |    |27*\/ 3202 |||              |    |27*\/ 3202 ||              |    |27*\/ 3202 ||| |          |                     __________________|     |      |                     __________________|              |    |27*\/ 3202 ||              |    |27*\/ 3202 |||              |    |27*\/ 3202 ||              |    |27*\/ 3202 |||                                                           
|          |/          ___\     /           ______ |     |      |/          ___\     /           ______ |              |atan|-----------||              |atan|-----------|||              |atan|-----------||              |atan|-----------||| |          |/          ___\     /           ______ |     |      |/          ___\     /           ______ |              |atan|-----------||              |atan|-----------|||              |atan|-----------||              |atan|-----------|||                                                           
|          ||  1   I*\/ 3 |    /  613   I*\/ 3202  |     |      ||  1   I*\/ 3 |    /  613   I*\/ 3202  |     _____    |    \    2452   /|     _____    |    \    2452   /||     _____    |    \    2452   /|     _____    |    \    2452   /|| |          ||  1   I*\/ 3 |    /  613   I*\/ 3202  |     |      ||  1   I*\/ 3 |    /  613   I*\/ 3202  |     _____    |    \    2452   /|     _____    |    \    2452   /||     _____    |    \    2452   /|     _____    |    \    2452   /|| /         __________________                             \
|          ||- - - -------|*3 /   --- + ---------- |     |      ||- - - -------|*3 /   --- + ---------- |   \/ 322 *sin|-----------------|   \/ 966 *cos|-----------------||   \/ 322 *cos|-----------------|   \/ 966 *sin|-----------------|| |          ||- - + -------|*3 /   --- + ---------- |     |      ||- - + -------|*3 /   --- + ---------- |   \/ 322 *sin|-----------------|   \/ 966 *cos|-----------------||   \/ 322 *cos|-----------------|   \/ 966 *sin|-----------------|| |        /           ______                              |
|7         \\  2      2   / \/     27       4      /     |      \\  2      2   / \/     27       4      /              \        3        /              \        3        /|              \        3        /              \        3        /| |7         \\  2      2   / \/     27       4      /     |      \\  2      2   / \/     27       4      /              \        3        /              \        3        /|              \        3        /              \        3        /| |7      /  613   I*\/ 3202                161            |
|- + ----------------------------------------------- + I*|----------------------------------------------- - ------------------------------ - ------------------------------| - ------------------------------ + ------------------------------|*|- + ----------------------------------------------- + I*|----------------------------------------------- - ------------------------------ + ------------------------------| - ------------------------------ - ------------------------------|*|- + 3 /   --- + ----------  + --------------------------|
\3                          18                           \                       18                                       12                               12              /                 12                               12              / \3                          18                           \                       18                                       12                               12              /                 12                               12              / |3   \/     27       4                 __________________|
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |                                     /           ______ |
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |                                    /  613   I*\/ 3202  |
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |                              18*3 /   --- + ---------- |
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                \                                 \/     27       4      /
$$\left(- \frac{\sqrt{322} \cos{\left(\frac{\operatorname{atan}{\left(\frac{27 \sqrt{3202}}{2452} \right)}}{3} \right)}}{12} + \frac{161 \operatorname{re}{\left(\frac{1}{\left(- \frac{1}{2} - \frac{\sqrt{3} i}{2}\right) \sqrt[3]{\frac{613}{27} + \frac{\sqrt{3202} i}{4}}}\right)}}{18} + \frac{\sqrt{966} \sin{\left(\frac{\operatorname{atan}{\left(\frac{27 \sqrt{3202}}{2452} \right)}}{3} \right)}}{12} + \frac{7}{3} + i \left(- \frac{\sqrt{966} \cos{\left(\frac{\operatorname{atan}{\left(\frac{27 \sqrt{3202}}{2452} \right)}}{3} \right)}}{12} - \frac{\sqrt{322} \sin{\left(\frac{\operatorname{atan}{\left(\frac{27 \sqrt{3202}}{2452} \right)}}{3} \right)}}{12} + \frac{161 \operatorname{im}{\left(\frac{1}{\left(- \frac{1}{2} - \frac{\sqrt{3} i}{2}\right) \sqrt[3]{\frac{613}{27} + \frac{\sqrt{3202} i}{4}}}\right)}}{18}\right)\right) \left(\frac{161 \operatorname{re}{\left(\frac{1}{\left(- \frac{1}{2} + \frac{\sqrt{3} i}{2}\right) \sqrt[3]{\frac{613}{27} + \frac{\sqrt{3202} i}{4}}}\right)}}{18} - \frac{\sqrt{322} \cos{\left(\frac{\operatorname{atan}{\left(\frac{27 \sqrt{3202}}{2452} \right)}}{3} \right)}}{12} - \frac{\sqrt{966} \sin{\left(\frac{\operatorname{atan}{\left(\frac{27 \sqrt{3202}}{2452} \right)}}{3} \right)}}{12} + \frac{7}{3} + i \left(\frac{161 \operatorname{im}{\left(\frac{1}{\left(- \frac{1}{2} + \frac{\sqrt{3} i}{2}\right) \sqrt[3]{\frac{613}{27} + \frac{\sqrt{3202} i}{4}}}\right)}}{18} - \frac{\sqrt{322} \sin{\left(\frac{\operatorname{atan}{\left(\frac{27 \sqrt{3202}}{2452} \right)}}{3} \right)}}{12} + \frac{\sqrt{966} \cos{\left(\frac{\operatorname{atan}{\left(\frac{27 \sqrt{3202}}{2452} \right)}}{3} \right)}}{12}\right)\right) \left(\frac{7}{3} + \frac{161}{18 \sqrt[3]{\frac{613}{27} + \frac{\sqrt{3202} i}{4}}} + \sqrt[3]{\frac{613}{27} + \frac{\sqrt{3202} i}{4}}\right)$$
=
                                                                        /              /      /     ______\\                 /    /     ______\\\
                                                                        |              |      |27*\/ 3202 ||                 |    |27*\/ 3202 |||
/              ______________________ /        ______________________\\ |              |2*atan|-----------||                 |atan|-----------|||
|     2/3   3 /               ______  |     3 /               ______ || |              |      \    2452   /|        _____    |    \    2452   /||
\161*2    + \/  2452 + 27*I*\/ 3202  *\14 + \/  4904 + 54*I*\/ 3202  //*|-126 + 644*cos|-------------------| - 28*\/ 322 *cos|-----------------||
                                                                        \              \         3         /                 \        3        //
-------------------------------------------------------------------------------------------------------------------------------------------------
                                                                 ______________________                                                          
                                                              3 /               ______                                                           
                                                          216*\/  2452 + 27*I*\/ 3202                                                            
$$\frac{\left(161 \cdot 2^{\frac{2}{3}} + \left(14 + \sqrt[3]{4904 + 54 \sqrt{3202} i}\right) \sqrt[3]{2452 + 27 \sqrt{3202} i}\right) \left(- 28 \sqrt{322} \cos{\left(\frac{\operatorname{atan}{\left(\frac{27 \sqrt{3202}}{2452} \right)}}{3} \right)} - 126 + 644 \cos{\left(\frac{2 \operatorname{atan}{\left(\frac{27 \sqrt{3202}}{2452} \right)}}{3} \right)}\right)}{216 \sqrt[3]{2452 + 27 \sqrt{3202} i}}$$
(161*2^(2/3) + (2452 + 27*i*sqrt(3202))^(1/3)*(14 + (4904 + 54*i*sqrt(3202))^(1/3)))*(-126 + 644*cos(2*atan(27*sqrt(3202)/2452)/3) - 28*sqrt(322)*cos(atan(27*sqrt(3202)/2452)/3))/(216*(2452 + 27*i*sqrt(3202))^(1/3))
Respuesta numérica [src]
x1 = 0.350689982882025 + 0.e-20*i
x2 = -1.56259138813688 + 0.e-22*i
x3 = 8.21190140525485 - 0.e-20*i
x3 = 8.21190140525485 - 0.e-20*i