Sr Examen

Otras calculadoras

(x^3-3*x^2-2*x-2)/(2-3*x^2)=0 la ecuación

El profesor se sorprenderá mucho al ver tu solución correcta😉

v

Solución numérica:

Buscar la solución numérica en el intervalo [, ]

Solución

Ha introducido [src]
 3      2              
x  - 3*x  - 2*x - 2    
------------------- = 0
             2         
      2 - 3*x          
$$\frac{\left(- 2 x + \left(x^{3} - 3 x^{2}\right)\right) - 2}{2 - 3 x^{2}} = 0$$
Gráfica
Respuesta rápida [src]
                                     _____________     /             _____________                       \
                                    /       _____      |            /       _____                        |
                                   /      \/ 354       |    ___    /      \/ 354                         |
                                3 /   3 + -------      |  \/ 3 *3 /   3 + -------              ___       |
                  5             \/           9         |        \/           9             5*\/ 3        |
x1 = 1 - -------------------- - ------------------ + I*|- ------------------------ + --------------------|
                _____________           2              |             2                      _____________|
               /       _____                           |                                   /       _____ |
              /      \/ 354                            |                                  /      \/ 354  |
         6*3 /   3 + -------                           |                             6*3 /   3 + ------- |
           \/           9                              \                               \/           9    /
$$x_{1} = - \frac{\sqrt[3]{\frac{\sqrt{354}}{9} + 3}}{2} - \frac{5}{6 \sqrt[3]{\frac{\sqrt{354}}{9} + 3}} + 1 + i \left(- \frac{\sqrt{3} \sqrt[3]{\frac{\sqrt{354}}{9} + 3}}{2} + \frac{5 \sqrt{3}}{6 \sqrt[3]{\frac{\sqrt{354}}{9} + 3}}\right)$$
                                     _____________     /           _____________                       \
                                    /       _____      |          /       _____                        |
                                   /      \/ 354       |  ___    /      \/ 354                         |
                                3 /   3 + -------      |\/ 3 *3 /   3 + -------              ___       |
                  5             \/           9         |      \/           9             5*\/ 3        |
x2 = 1 - -------------------- - ------------------ + I*|------------------------ - --------------------|
                _____________           2              |           2                      _____________|
               /       _____                           |                                 /       _____ |
              /      \/ 354                            |                                /      \/ 354  |
         6*3 /   3 + -------                           |                           6*3 /   3 + ------- |
           \/           9                              \                             \/           9    /
$$x_{2} = - \frac{\sqrt[3]{\frac{\sqrt{354}}{9} + 3}}{2} - \frac{5}{6 \sqrt[3]{\frac{\sqrt{354}}{9} + 3}} + 1 + i \left(- \frac{5 \sqrt{3}}{6 \sqrt[3]{\frac{\sqrt{354}}{9} + 3}} + \frac{\sqrt{3} \sqrt[3]{\frac{\sqrt{354}}{9} + 3}}{2}\right)$$
              _____________                       
             /       _____                        
            /      \/ 354              5          
x3 = 1 + 3 /   3 + -------  + --------------------
         \/           9              _____________
                                    /       _____ 
                                   /      \/ 354  
                              3*3 /   3 + ------- 
                                \/           9    
$$x_{3} = \frac{5}{3 \sqrt[3]{\frac{\sqrt{354}}{9} + 3}} + 1 + \sqrt[3]{\frac{\sqrt{354}}{9} + 3}$$
x3 = 5/(3*(sqrt(354)/9 + 3)^(1/3)) + 1 + (sqrt(354)/9 + 3)^(1/3)
Suma y producto de raíces [src]
suma
                                _____________     /             _____________                       \                                   _____________     /           _____________                       \                                                
                               /       _____      |            /       _____                        |                                  /       _____      |          /       _____                        |                                                
                              /      \/ 354       |    ___    /      \/ 354                         |                                 /      \/ 354       |  ___    /      \/ 354                         |            _____________                       
                           3 /   3 + -------      |  \/ 3 *3 /   3 + -------              ___       |                              3 /   3 + -------      |\/ 3 *3 /   3 + -------              ___       |           /       _____                        
             5             \/           9         |        \/           9             5*\/ 3        |                5             \/           9         |      \/           9             5*\/ 3        |          /      \/ 354              5          
1 - -------------------- - ------------------ + I*|- ------------------------ + --------------------| + 1 - -------------------- - ------------------ + I*|------------------------ - --------------------| + 1 + 3 /   3 + -------  + --------------------
           _____________           2              |             2                      _____________|              _____________           2              |           2                      _____________|       \/           9              _____________
          /       _____                           |                                   /       _____ |             /       _____                           |                                 /       _____ |                                  /       _____ 
         /      \/ 354                            |                                  /      \/ 354  |            /      \/ 354                            |                                /      \/ 354  |                                 /      \/ 354  
    6*3 /   3 + -------                           |                             6*3 /   3 + ------- |       6*3 /   3 + -------                           |                           6*3 /   3 + ------- |                            3*3 /   3 + ------- 
      \/           9                              \                               \/           9    /         \/           9                              \                             \/           9    /                              \/           9    
$$\left(\frac{5}{3 \sqrt[3]{\frac{\sqrt{354}}{9} + 3}} + 1 + \sqrt[3]{\frac{\sqrt{354}}{9} + 3}\right) + \left(\left(- \frac{\sqrt[3]{\frac{\sqrt{354}}{9} + 3}}{2} - \frac{5}{6 \sqrt[3]{\frac{\sqrt{354}}{9} + 3}} + 1 + i \left(- \frac{\sqrt{3} \sqrt[3]{\frac{\sqrt{354}}{9} + 3}}{2} + \frac{5 \sqrt{3}}{6 \sqrt[3]{\frac{\sqrt{354}}{9} + 3}}\right)\right) + \left(- \frac{\sqrt[3]{\frac{\sqrt{354}}{9} + 3}}{2} - \frac{5}{6 \sqrt[3]{\frac{\sqrt{354}}{9} + 3}} + 1 + i \left(- \frac{5 \sqrt{3}}{6 \sqrt[3]{\frac{\sqrt{354}}{9} + 3}} + \frac{\sqrt{3} \sqrt[3]{\frac{\sqrt{354}}{9} + 3}}{2}\right)\right)\right)$$
=
      /           _____________                       \     /             _____________                       \
      |          /       _____                        |     |            /       _____                        |
      |  ___    /      \/ 354                         |     |    ___    /      \/ 354                         |
      |\/ 3 *3 /   3 + -------              ___       |     |  \/ 3 *3 /   3 + -------              ___       |
      |      \/           9             5*\/ 3        |     |        \/           9             5*\/ 3        |
3 + I*|------------------------ - --------------------| + I*|- ------------------------ + --------------------|
      |           2                      _____________|     |             2                      _____________|
      |                                 /       _____ |     |                                   /       _____ |
      |                                /      \/ 354  |     |                                  /      \/ 354  |
      |                           6*3 /   3 + ------- |     |                             6*3 /   3 + ------- |
      \                             \/           9    /     \                               \/           9    /
$$3 + i \left(- \frac{\sqrt{3} \sqrt[3]{\frac{\sqrt{354}}{9} + 3}}{2} + \frac{5 \sqrt{3}}{6 \sqrt[3]{\frac{\sqrt{354}}{9} + 3}}\right) + i \left(- \frac{5 \sqrt{3}}{6 \sqrt[3]{\frac{\sqrt{354}}{9} + 3}} + \frac{\sqrt{3} \sqrt[3]{\frac{\sqrt{354}}{9} + 3}}{2}\right)$$
producto
/                                _____________     /             _____________                       \\ /                                _____________     /           _____________                       \\                                                
|                               /       _____      |            /       _____                        || |                               /       _____      |          /       _____                        ||                                                
|                              /      \/ 354       |    ___    /      \/ 354                         || |                              /      \/ 354       |  ___    /      \/ 354                         || /         _____________                       \
|                           3 /   3 + -------      |  \/ 3 *3 /   3 + -------              ___       || |                           3 /   3 + -------      |\/ 3 *3 /   3 + -------              ___       || |        /       _____                        |
|             5             \/           9         |        \/           9             5*\/ 3        || |             5             \/           9         |      \/           9             5*\/ 3        || |       /      \/ 354              5          |
|1 - -------------------- - ------------------ + I*|- ------------------------ + --------------------||*|1 - -------------------- - ------------------ + I*|------------------------ - --------------------||*|1 + 3 /   3 + -------  + --------------------|
|           _____________           2              |             2                      _____________|| |           _____________           2              |           2                      _____________|| |    \/           9              _____________|
|          /       _____                           |                                   /       _____ || |          /       _____                           |                                 /       _____ || |                               /       _____ |
|         /      \/ 354                            |                                  /      \/ 354  || |         /      \/ 354                            |                                /      \/ 354  || |                              /      \/ 354  |
|    6*3 /   3 + -------                           |                             6*3 /   3 + ------- || |    6*3 /   3 + -------                           |                           6*3 /   3 + ------- || |                         3*3 /   3 + ------- |
\      \/           9                              \                               \/           9    // \      \/           9                              \                             \/           9    // \                           \/           9    /
$$\left(- \frac{\sqrt[3]{\frac{\sqrt{354}}{9} + 3}}{2} - \frac{5}{6 \sqrt[3]{\frac{\sqrt{354}}{9} + 3}} + 1 + i \left(- \frac{5 \sqrt{3}}{6 \sqrt[3]{\frac{\sqrt{354}}{9} + 3}} + \frac{\sqrt{3} \sqrt[3]{\frac{\sqrt{354}}{9} + 3}}{2}\right)\right) \left(- \frac{\sqrt[3]{\frac{\sqrt{354}}{9} + 3}}{2} - \frac{5}{6 \sqrt[3]{\frac{\sqrt{354}}{9} + 3}} + 1 + i \left(- \frac{\sqrt{3} \sqrt[3]{\frac{\sqrt{354}}{9} + 3}}{2} + \frac{5 \sqrt{3}}{6 \sqrt[3]{\frac{\sqrt{354}}{9} + 3}}\right)\right) \left(\frac{5}{3 \sqrt[3]{\frac{\sqrt{354}}{9} + 3}} + 1 + \sqrt[3]{\frac{\sqrt{354}}{9} + 3}\right)$$
=
2
$$2$$
2
Respuesta numérica [src]
x1 = -0.34454766181883 - 0.650711337466504*i
x2 = -0.34454766181883 + 0.650711337466504*i
x3 = 3.68909532363766
x3 = 3.68909532363766