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x^3(x-2)/x+10=0 la ecuación

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Solución numérica:

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Solución

Ha introducido [src]
 3                 
x *(x - 2)         
---------- + 10 = 0
    x              
$$10 + \frac{x^{3} \left(x - 2\right)}{x} = 0$$
Gráfica
Respuesta rápida [src]
            __________________                               /                                     __________________\
         3 /           ______                                |              ___             ___ 3 /           ______ |
     2   \/  127 + 3*\/ 1785                2                |          2*\/ 3            \/ 3 *\/  127 + 3*\/ 1785  |
x1 = - + --------------------- + ----------------------- + I*|- ----------------------- + ---------------------------|
     3             6                  __________________     |       __________________                6             |
                                   3 /           ______      |    3 /           ______                               |
                                 3*\/  127 + 3*\/ 1785       \  3*\/  127 + 3*\/ 1785                                /
$$x_{1} = \frac{2}{3 \sqrt[3]{3 \sqrt{1785} + 127}} + \frac{2}{3} + \frac{\sqrt[3]{3 \sqrt{1785} + 127}}{6} + i \left(- \frac{2 \sqrt{3}}{3 \sqrt[3]{3 \sqrt{1785} + 127}} + \frac{\sqrt{3} \sqrt[3]{3 \sqrt{1785} + 127}}{6}\right)$$
            __________________                               /           __________________                          \
         3 /           ______                                |    ___ 3 /           ______                ___        |
     2   \/  127 + 3*\/ 1785                2                |  \/ 3 *\/  127 + 3*\/ 1785             2*\/ 3         |
x2 = - + --------------------- + ----------------------- + I*|- --------------------------- + -----------------------|
     3             6                  __________________     |               6                     __________________|
                                   3 /           ______      |                                  3 /           ______ |
                                 3*\/  127 + 3*\/ 1785       \                                3*\/  127 + 3*\/ 1785  /
$$x_{2} = \frac{2}{3 \sqrt[3]{3 \sqrt{1785} + 127}} + \frac{2}{3} + \frac{\sqrt[3]{3 \sqrt{1785} + 127}}{6} + i \left(- \frac{\sqrt{3} \sqrt[3]{3 \sqrt{1785} + 127}}{6} + \frac{2 \sqrt{3}}{3 \sqrt[3]{3 \sqrt{1785} + 127}}\right)$$
                                      __________________
                                   3 /           ______ 
     2              4              \/  127 + 3*\/ 1785  
x3 = - - ----------------------- - ---------------------
     3        __________________             3          
           3 /           ______                         
         3*\/  127 + 3*\/ 1785                          
$$x_{3} = - \frac{\sqrt[3]{3 \sqrt{1785} + 127}}{3} - \frac{4}{3 \sqrt[3]{3 \sqrt{1785} + 127}} + \frac{2}{3}$$
x3 = -(3*sqrt(1785) + 127)^(1/3)/3 - 4/(3*(3*sqrt(1785) + 127)^(1/3)) + 2/3
Suma y producto de raíces [src]
suma
       __________________                               /                                     __________________\          __________________                               /           __________________                          \                                    __________________
    3 /           ______                                |              ___             ___ 3 /           ______ |       3 /           ______                                |    ___ 3 /           ______                ___        |                                 3 /           ______ 
2   \/  127 + 3*\/ 1785                2                |          2*\/ 3            \/ 3 *\/  127 + 3*\/ 1785  |   2   \/  127 + 3*\/ 1785                2                |  \/ 3 *\/  127 + 3*\/ 1785             2*\/ 3         |   2              4              \/  127 + 3*\/ 1785  
- + --------------------- + ----------------------- + I*|- ----------------------- + ---------------------------| + - + --------------------- + ----------------------- + I*|- --------------------------- + -----------------------| + - - ----------------------- - ---------------------
3             6                  __________________     |       __________________                6             |   3             6                  __________________     |               6                     __________________|   3        __________________             3          
                              3 /           ______      |    3 /           ______                               |                                 3 /           ______      |                                  3 /           ______ |         3 /           ______                         
                            3*\/  127 + 3*\/ 1785       \  3*\/  127 + 3*\/ 1785                                /                               3*\/  127 + 3*\/ 1785       \                                3*\/  127 + 3*\/ 1785  /       3*\/  127 + 3*\/ 1785                          
$$\left(- \frac{\sqrt[3]{3 \sqrt{1785} + 127}}{3} - \frac{4}{3 \sqrt[3]{3 \sqrt{1785} + 127}} + \frac{2}{3}\right) + \left(\left(\frac{2}{3 \sqrt[3]{3 \sqrt{1785} + 127}} + \frac{2}{3} + \frac{\sqrt[3]{3 \sqrt{1785} + 127}}{6} + i \left(- \frac{\sqrt{3} \sqrt[3]{3 \sqrt{1785} + 127}}{6} + \frac{2 \sqrt{3}}{3 \sqrt[3]{3 \sqrt{1785} + 127}}\right)\right) + \left(\frac{2}{3 \sqrt[3]{3 \sqrt{1785} + 127}} + \frac{2}{3} + \frac{\sqrt[3]{3 \sqrt{1785} + 127}}{6} + i \left(- \frac{2 \sqrt{3}}{3 \sqrt[3]{3 \sqrt{1785} + 127}} + \frac{\sqrt{3} \sqrt[3]{3 \sqrt{1785} + 127}}{6}\right)\right)\right)$$
=
      /                                     __________________\     /           __________________                          \
      |              ___             ___ 3 /           ______ |     |    ___ 3 /           ______                ___        |
      |          2*\/ 3            \/ 3 *\/  127 + 3*\/ 1785  |     |  \/ 3 *\/  127 + 3*\/ 1785             2*\/ 3         |
2 + I*|- ----------------------- + ---------------------------| + I*|- --------------------------- + -----------------------|
      |       __________________                6             |     |               6                     __________________|
      |    3 /           ______                               |     |                                  3 /           ______ |
      \  3*\/  127 + 3*\/ 1785                                /     \                                3*\/  127 + 3*\/ 1785  /
$$2 + i \left(- \frac{\sqrt{3} \sqrt[3]{3 \sqrt{1785} + 127}}{6} + \frac{2 \sqrt{3}}{3 \sqrt[3]{3 \sqrt{1785} + 127}}\right) + i \left(- \frac{2 \sqrt{3}}{3 \sqrt[3]{3 \sqrt{1785} + 127}} + \frac{\sqrt{3} \sqrt[3]{3 \sqrt{1785} + 127}}{6}\right)$$
producto
/       __________________                               /                                     __________________\\ /       __________________                               /           __________________                          \\ /                                 __________________\
|    3 /           ______                                |              ___             ___ 3 /           ______ || |    3 /           ______                                |    ___ 3 /           ______                ___        || |                              3 /           ______ |
|2   \/  127 + 3*\/ 1785                2                |          2*\/ 3            \/ 3 *\/  127 + 3*\/ 1785  || |2   \/  127 + 3*\/ 1785                2                |  \/ 3 *\/  127 + 3*\/ 1785             2*\/ 3         || |2              4              \/  127 + 3*\/ 1785  |
|- + --------------------- + ----------------------- + I*|- ----------------------- + ---------------------------||*|- + --------------------- + ----------------------- + I*|- --------------------------- + -----------------------||*|- - ----------------------- - ---------------------|
|3             6                  __________________     |       __________________                6             || |3             6                  __________________     |               6                     __________________|| |3        __________________             3          |
|                              3 /           ______      |    3 /           ______                               || |                              3 /           ______      |                                  3 /           ______ || |      3 /           ______                         |
\                            3*\/  127 + 3*\/ 1785       \  3*\/  127 + 3*\/ 1785                                // \                            3*\/  127 + 3*\/ 1785       \                                3*\/  127 + 3*\/ 1785  // \    3*\/  127 + 3*\/ 1785                          /
$$\left(\frac{2}{3 \sqrt[3]{3 \sqrt{1785} + 127}} + \frac{2}{3} + \frac{\sqrt[3]{3 \sqrt{1785} + 127}}{6} + i \left(- \frac{2 \sqrt{3}}{3 \sqrt[3]{3 \sqrt{1785} + 127}} + \frac{\sqrt{3} \sqrt[3]{3 \sqrt{1785} + 127}}{6}\right)\right) \left(\frac{2}{3 \sqrt[3]{3 \sqrt{1785} + 127}} + \frac{2}{3} + \frac{\sqrt[3]{3 \sqrt{1785} + 127}}{6} + i \left(- \frac{\sqrt{3} \sqrt[3]{3 \sqrt{1785} + 127}}{6} + \frac{2 \sqrt{3}}{3 \sqrt[3]{3 \sqrt{1785} + 127}}\right)\right) \left(- \frac{\sqrt[3]{3 \sqrt{1785} + 127}}{3} - \frac{4}{3 \sqrt[3]{3 \sqrt{1785} + 127}} + \frac{2}{3}\right)$$
=
-10
$$-10$$
-10
Respuesta numérica [src]
x1 = 1.82712457892838 + 1.64519128524895*i
x2 = -1.65424915785676
x3 = 1.82712457892838 - 1.64519128524895*i
x3 = 1.82712457892838 - 1.64519128524895*i