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  • La ecuación:
  • Ecuación x^2+5x=36 Ecuación x^2+5x=36
  • Ecuación 3*x=8 Ecuación 3*x=8
  • Ecuación 9-7(x+3)=5-6x Ecuación 9-7(x+3)=5-6x
  • Ecuación 4x-5=3+2(x+1) Ecuación 4x-5=3+2(x+1)
  • Expresar {x} en función de y en la ecuación:
  • -17*x+2*y=9
  • 10*x-15*y=16
  • -17*x+2*y=-4
  • -2*x-19*y=3
  • Expresiones idénticas

  • (diecinueve / cincuenta)^ tres *x^ tres + diecinueve * dos *(diecinueve / cincuenta)^ tres *x^ dos / cincuenta - treinta y siete * treinta y cuatro mil quinientos setenta y siete /(diez * cien * diez ^ tres * cinco / ocho)= cero
  • (19 dividir por 50) al cubo multiplicar por x al cubo más 19 multiplicar por 2 multiplicar por (19 dividir por 50) al cubo multiplicar por x al cuadrado dividir por 50 menos 37 multiplicar por 34577 dividir por (10 multiplicar por 100 multiplicar por 10 al cubo multiplicar por 5 dividir por 8) es igual a 0
  • (diecinueve dividir por cincuenta) en el grado tres multiplicar por x en el grado tres más diecinueve multiplicar por dos multiplicar por (diecinueve dividir por cincuenta) en el grado tres multiplicar por x en el grado dos dividir por cincuenta menos treinta y siete multiplicar por treinta y cuatro mil quinientos setenta y siete dividir por (diez multiplicar por cien multiplicar por diez en el grado tres multiplicar por cinco dividir por ocho) es igual a cero
  • (19/50)3*x3+19*2*(19/50)3*x2/50-37*34577/(10*100*103*5/8)=0
  • 19/503*x3+19*2*19/503*x2/50-37*34577/10*100*103*5/8=0
  • (19/50)³*x³+19*2*(19/50)³*x²/50-37*34577/(10*100*10³*5/8)=0
  • (19/50) en el grado 3*x en el grado 3+19*2*(19/50) en el grado 3*x en el grado 2/50-37*34577/(10*100*10 en el grado 3*5/8)=0
  • (19/50)^3x^3+192(19/50)^3x^2/50-3734577/(1010010^35/8)=0
  • (19/50)3x3+192(19/50)3x2/50-3734577/(101001035/8)=0
  • 19/503x3+19219/503x2/50-3734577/101001035/8=0
  • 19/50^3x^3+19219/50^3x^2/50-3734577/1010010^35/8=0
  • (19/50)^3*x^3+19*2*(19/50)^3*x^2/50-37*34577/(10*100*10^3*5/8)=O
  • (19 dividir por 50)^3*x^3+19*2*(19 dividir por 50)^3*x^2 dividir por 50-37*34577 dividir por (10*100*10^3*5 dividir por 8)=0
  • Expresiones semejantes

  • (19/50)^3*x^3-19*2*(19/50)^3*x^2/50-37*34577/(10*100*10^3*5/8)=0
  • (19/50)^3*x^3+19*2*(19/50)^3*x^2/50+37*34577/(10*100*10^3*5/8)=0

(19/50)^3*x^3+19*2*(19/50)^3*x^2/50-37*34577/(10*100*10^3*5/8)=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                     
              /19\   2                  
    3      38*|--| *x                   
/19\   3      \50/         1279349      
|--| *x  + ----------- - ----------- = 0
\50/            50       /5*1000000\    
                         |---------|    
                         \    8    /    
$$\left(\left(\frac{19}{50}\right)^{3} x^{3} + \frac{38 \left(\frac{19}{50}\right)^{3} x^{2}}{50}\right) - \frac{1279349}{\frac{5}{8} \cdot 1000000} = 0$$
Teorema de Cardano-Vieta
reescribamos la ecuación
$$\left(\left(\frac{19}{50}\right)^{3} x^{3} + \frac{38 \left(\frac{19}{50}\right)^{3} x^{2}}{50}\right) - \frac{1279349}{\frac{5}{8} \cdot 1000000} = 0$$
de
$$a x^{3} + b x^{2} + c x + d = 0$$
como ecuación cúbica reducida
$$x^{3} + \frac{b x^{2}}{a} + \frac{c x}{a} + \frac{d}{a} = 0$$
$$x^{3} + \frac{19 x^{2}}{25} - \frac{1279349}{34295} = 0$$
$$p x^{2} + q x + v + x^{3} = 0$$
donde
$$p = \frac{b}{a}$$
$$p = \frac{19}{25}$$
$$q = \frac{c}{a}$$
$$q = 0$$
$$v = \frac{d}{a}$$
$$v = - \frac{1279349}{34295}$$
Fórmulas de Cardano-Vieta
$$x_{1} + x_{2} + x_{3} = - p$$
$$x_{1} x_{2} + x_{1} x_{3} + x_{2} x_{3} = q$$
$$x_{1} x_{2} x_{3} = v$$
$$x_{1} + x_{2} + x_{3} = - \frac{19}{25}$$
$$x_{1} x_{2} + x_{1} x_{3} + x_{2} x_{3} = 0$$
$$x_{1} x_{2} x_{3} = - \frac{1279349}{34295}$$
Gráfica
Suma y producto de raíces [src]
suma
                                                                  ________________________________________     /             ________________________________________                                                      \                                                                     ________________________________________     /           ________________________________________                                                      \                                                                                                            
                                                                 /                  _____________________      |            /                  _____________________                                                       |                                                                    /                  _____________________      |          /                  _____________________                                                       |                                                                                                            
                                                                /  107850980113   \/ 2067880010324452485       |    ___    /  107850980113   \/ 2067880010324452485                                                        |                                                                   /  107850980113   \/ 2067880010324452485       |  ___    /  107850980113   \/ 2067880010324452485                                                        |               ________________________________________                                                     
                                                             3 /   ------------ + -----------------------      |  \/ 3 *3 /   ------------ + -----------------------                               ___                     |                                                                3 /   ------------ + -----------------------      |\/ 3 *3 /   ------------ + -----------------------                               ___                     |              /                  _____________________                                                      
  19                           361                           \/     5787281250            77163750             |        \/     5787281250            77163750                                361*\/ 3                      |     19                           361                           \/     5787281250            77163750             |      \/     5787281250            77163750                                361*\/ 3                      |     19      /  107850980113   \/ 2067880010324452485                            361                        
- -- - --------------------------------------------------- - --------------------------------------------- + I*|- --------------------------------------------------- + ---------------------------------------------------| + - -- - --------------------------------------------------- - --------------------------------------------- + I*|--------------------------------------------------- - ---------------------------------------------------| + - -- + 3 /   ------------ + -----------------------  + --------------------------------------------------
  75              ________________________________________                         2                           |                           2                                       ________________________________________|     75              ________________________________________                         2                           |                         2                                       ________________________________________|     75   \/     5787281250            77163750                     ________________________________________
                 /                  _____________________                                                      |                                                                  /                  _____________________ |                    /                  _____________________                                                      |                                                                /                  _____________________ |                                                                   /                  _____________________ 
                /  107850980113   \/ 2067880010324452485                                                       |                                                                 /  107850980113   \/ 2067880010324452485  |                   /  107850980113   \/ 2067880010324452485                                                       |                                                               /  107850980113   \/ 2067880010324452485  |                                                                  /  107850980113   \/ 2067880010324452485  
       11250*3 /   ------------ + -----------------------                                                      |                                                        11250*3 /   ------------ + ----------------------- |          11250*3 /   ------------ + -----------------------                                                      |                                                      11250*3 /   ------------ + ----------------------- |                                                          5625*3 /   ------------ + ----------------------- 
             \/     5787281250            77163750                                                             \                                                              \/     5787281250            77163750        /                \/     5787281250            77163750                                                             \                                                            \/     5787281250            77163750        /                                                               \/     5787281250            77163750        
$$\left(- \frac{19}{75} + \frac{361}{5625 \sqrt[3]{\frac{\sqrt{2067880010324452485}}{77163750} + \frac{107850980113}{5787281250}}} + \sqrt[3]{\frac{\sqrt{2067880010324452485}}{77163750} + \frac{107850980113}{5787281250}}\right) + \left(\left(- \frac{\sqrt[3]{\frac{\sqrt{2067880010324452485}}{77163750} + \frac{107850980113}{5787281250}}}{2} - \frac{19}{75} - \frac{361}{11250 \sqrt[3]{\frac{\sqrt{2067880010324452485}}{77163750} + \frac{107850980113}{5787281250}}} + i \left(- \frac{\sqrt{3} \sqrt[3]{\frac{\sqrt{2067880010324452485}}{77163750} + \frac{107850980113}{5787281250}}}{2} + \frac{361 \sqrt{3}}{11250 \sqrt[3]{\frac{\sqrt{2067880010324452485}}{77163750} + \frac{107850980113}{5787281250}}}\right)\right) + \left(- \frac{\sqrt[3]{\frac{\sqrt{2067880010324452485}}{77163750} + \frac{107850980113}{5787281250}}}{2} - \frac{19}{75} - \frac{361}{11250 \sqrt[3]{\frac{\sqrt{2067880010324452485}}{77163750} + \frac{107850980113}{5787281250}}} + i \left(- \frac{361 \sqrt{3}}{11250 \sqrt[3]{\frac{\sqrt{2067880010324452485}}{77163750} + \frac{107850980113}{5787281250}}} + \frac{\sqrt{3} \sqrt[3]{\frac{\sqrt{2067880010324452485}}{77163750} + \frac{107850980113}{5787281250}}}{2}\right)\right)\right)$$
=
         /           ________________________________________                                                      \     /             ________________________________________                                                      \
         |          /                  _____________________                                                       |     |            /                  _____________________                                                       |
         |  ___    /  107850980113   \/ 2067880010324452485                                                        |     |    ___    /  107850980113   \/ 2067880010324452485                                                        |
         |\/ 3 *3 /   ------------ + -----------------------                               ___                     |     |  \/ 3 *3 /   ------------ + -----------------------                               ___                     |
  19     |      \/     5787281250            77163750                                361*\/ 3                      |     |        \/     5787281250            77163750                                361*\/ 3                      |
- -- + I*|--------------------------------------------------- - ---------------------------------------------------| + I*|- --------------------------------------------------- + ---------------------------------------------------|
  25     |                         2                                       ________________________________________|     |                           2                                       ________________________________________|
         |                                                                /                  _____________________ |     |                                                                  /                  _____________________ |
         |                                                               /  107850980113   \/ 2067880010324452485  |     |                                                                 /  107850980113   \/ 2067880010324452485  |
         |                                                      11250*3 /   ------------ + ----------------------- |     |                                                        11250*3 /   ------------ + ----------------------- |
         \                                                            \/     5787281250            77163750        /     \                                                              \/     5787281250            77163750        /
$$- \frac{19}{25} + i \left(- \frac{\sqrt{3} \sqrt[3]{\frac{\sqrt{2067880010324452485}}{77163750} + \frac{107850980113}{5787281250}}}{2} + \frac{361 \sqrt{3}}{11250 \sqrt[3]{\frac{\sqrt{2067880010324452485}}{77163750} + \frac{107850980113}{5787281250}}}\right) + i \left(- \frac{361 \sqrt{3}}{11250 \sqrt[3]{\frac{\sqrt{2067880010324452485}}{77163750} + \frac{107850980113}{5787281250}}} + \frac{\sqrt{3} \sqrt[3]{\frac{\sqrt{2067880010324452485}}{77163750} + \frac{107850980113}{5787281250}}}{2}\right)$$
producto
/                                                                  ________________________________________     /             ________________________________________                                                      \\ /                                                                  ________________________________________     /           ________________________________________                                                      \\                                                                                                            
|                                                                 /                  _____________________      |            /                  _____________________                                                       || |                                                                 /                  _____________________      |          /                  _____________________                                                       ||                                                                                                            
|                                                                /  107850980113   \/ 2067880010324452485       |    ___    /  107850980113   \/ 2067880010324452485                                                        || |                                                                /  107850980113   \/ 2067880010324452485       |  ___    /  107850980113   \/ 2067880010324452485                                                        || /            ________________________________________                                                     \
|                                                             3 /   ------------ + -----------------------      |  \/ 3 *3 /   ------------ + -----------------------                               ___                     || |                                                             3 /   ------------ + -----------------------      |\/ 3 *3 /   ------------ + -----------------------                               ___                     || |           /                  _____________________                                                      |
|  19                           361                           \/     5787281250            77163750             |        \/     5787281250            77163750                                361*\/ 3                      || |  19                           361                           \/     5787281250            77163750             |      \/     5787281250            77163750                                361*\/ 3                      || |  19      /  107850980113   \/ 2067880010324452485                            361                        |
|- -- - --------------------------------------------------- - --------------------------------------------- + I*|- --------------------------------------------------- + ---------------------------------------------------||*|- -- - --------------------------------------------------- - --------------------------------------------- + I*|--------------------------------------------------- - ---------------------------------------------------||*|- -- + 3 /   ------------ + -----------------------  + --------------------------------------------------|
|  75              ________________________________________                         2                           |                           2                                       ________________________________________|| |  75              ________________________________________                         2                           |                         2                                       ________________________________________|| |  75   \/     5787281250            77163750                     ________________________________________|
|                 /                  _____________________                                                      |                                                                  /                  _____________________ || |                 /                  _____________________                                                      |                                                                /                  _____________________ || |                                                                /                  _____________________ |
|                /  107850980113   \/ 2067880010324452485                                                       |                                                                 /  107850980113   \/ 2067880010324452485  || |                /  107850980113   \/ 2067880010324452485                                                       |                                                               /  107850980113   \/ 2067880010324452485  || |                                                               /  107850980113   \/ 2067880010324452485  |
|       11250*3 /   ------------ + -----------------------                                                      |                                                        11250*3 /   ------------ + ----------------------- || |       11250*3 /   ------------ + -----------------------                                                      |                                                      11250*3 /   ------------ + ----------------------- || |                                                       5625*3 /   ------------ + ----------------------- |
\             \/     5787281250            77163750                                                             \                                                              \/     5787281250            77163750        // \             \/     5787281250            77163750                                                             \                                                            \/     5787281250            77163750        // \                                                            \/     5787281250            77163750        /
$$\left(- \frac{\sqrt[3]{\frac{\sqrt{2067880010324452485}}{77163750} + \frac{107850980113}{5787281250}}}{2} - \frac{19}{75} - \frac{361}{11250 \sqrt[3]{\frac{\sqrt{2067880010324452485}}{77163750} + \frac{107850980113}{5787281250}}} + i \left(- \frac{361 \sqrt{3}}{11250 \sqrt[3]{\frac{\sqrt{2067880010324452485}}{77163750} + \frac{107850980113}{5787281250}}} + \frac{\sqrt{3} \sqrt[3]{\frac{\sqrt{2067880010324452485}}{77163750} + \frac{107850980113}{5787281250}}}{2}\right)\right) \left(- \frac{\sqrt[3]{\frac{\sqrt{2067880010324452485}}{77163750} + \frac{107850980113}{5787281250}}}{2} - \frac{19}{75} - \frac{361}{11250 \sqrt[3]{\frac{\sqrt{2067880010324452485}}{77163750} + \frac{107850980113}{5787281250}}} + i \left(- \frac{\sqrt{3} \sqrt[3]{\frac{\sqrt{2067880010324452485}}{77163750} + \frac{107850980113}{5787281250}}}{2} + \frac{361 \sqrt{3}}{11250 \sqrt[3]{\frac{\sqrt{2067880010324452485}}{77163750} + \frac{107850980113}{5787281250}}}\right)\right) \left(- \frac{19}{75} + \frac{361}{5625 \sqrt[3]{\frac{\sqrt{2067880010324452485}}{77163750} + \frac{107850980113}{5787281250}}} + \sqrt[3]{\frac{\sqrt{2067880010324452485}}{77163750} + \frac{107850980113}{5787281250}}\right)$$
=
1279349
-------
 34295 
$$\frac{1279349}{34295}$$
1279349/34295
Respuesta rápida [src]
                                                                       ________________________________________     /             ________________________________________                                                      \
                                                                      /                  _____________________      |            /                  _____________________                                                       |
                                                                     /  107850980113   \/ 2067880010324452485       |    ___    /  107850980113   \/ 2067880010324452485                                                        |
                                                                  3 /   ------------ + -----------------------      |  \/ 3 *3 /   ------------ + -----------------------                               ___                     |
       19                           361                           \/     5787281250            77163750             |        \/     5787281250            77163750                                361*\/ 3                      |
x1 = - -- - --------------------------------------------------- - --------------------------------------------- + I*|- --------------------------------------------------- + ---------------------------------------------------|
       75              ________________________________________                         2                           |                           2                                       ________________________________________|
                      /                  _____________________                                                      |                                                                  /                  _____________________ |
                     /  107850980113   \/ 2067880010324452485                                                       |                                                                 /  107850980113   \/ 2067880010324452485  |
            11250*3 /   ------------ + -----------------------                                                      |                                                        11250*3 /   ------------ + ----------------------- |
                  \/     5787281250            77163750                                                             \                                                              \/     5787281250            77163750        /
$$x_{1} = - \frac{\sqrt[3]{\frac{\sqrt{2067880010324452485}}{77163750} + \frac{107850980113}{5787281250}}}{2} - \frac{19}{75} - \frac{361}{11250 \sqrt[3]{\frac{\sqrt{2067880010324452485}}{77163750} + \frac{107850980113}{5787281250}}} + i \left(- \frac{\sqrt{3} \sqrt[3]{\frac{\sqrt{2067880010324452485}}{77163750} + \frac{107850980113}{5787281250}}}{2} + \frac{361 \sqrt{3}}{11250 \sqrt[3]{\frac{\sqrt{2067880010324452485}}{77163750} + \frac{107850980113}{5787281250}}}\right)$$
                                                                       ________________________________________     /           ________________________________________                                                      \
                                                                      /                  _____________________      |          /                  _____________________                                                       |
                                                                     /  107850980113   \/ 2067880010324452485       |  ___    /  107850980113   \/ 2067880010324452485                                                        |
                                                                  3 /   ------------ + -----------------------      |\/ 3 *3 /   ------------ + -----------------------                               ___                     |
       19                           361                           \/     5787281250            77163750             |      \/     5787281250            77163750                                361*\/ 3                      |
x2 = - -- - --------------------------------------------------- - --------------------------------------------- + I*|--------------------------------------------------- - ---------------------------------------------------|
       75              ________________________________________                         2                           |                         2                                       ________________________________________|
                      /                  _____________________                                                      |                                                                /                  _____________________ |
                     /  107850980113   \/ 2067880010324452485                                                       |                                                               /  107850980113   \/ 2067880010324452485  |
            11250*3 /   ------------ + -----------------------                                                      |                                                      11250*3 /   ------------ + ----------------------- |
                  \/     5787281250            77163750                                                             \                                                            \/     5787281250            77163750        /
$$x_{2} = - \frac{\sqrt[3]{\frac{\sqrt{2067880010324452485}}{77163750} + \frac{107850980113}{5787281250}}}{2} - \frac{19}{75} - \frac{361}{11250 \sqrt[3]{\frac{\sqrt{2067880010324452485}}{77163750} + \frac{107850980113}{5787281250}}} + i \left(- \frac{361 \sqrt{3}}{11250 \sqrt[3]{\frac{\sqrt{2067880010324452485}}{77163750} + \frac{107850980113}{5787281250}}} + \frac{\sqrt{3} \sqrt[3]{\frac{\sqrt{2067880010324452485}}{77163750} + \frac{107850980113}{5787281250}}}{2}\right)$$
                 ________________________________________                                                     
                /                  _____________________                                                      
       19      /  107850980113   \/ 2067880010324452485                            361                        
x3 = - -- + 3 /   ------------ + -----------------------  + --------------------------------------------------
       75   \/     5787281250            77163750                     ________________________________________
                                                                     /                  _____________________ 
                                                                    /  107850980113   \/ 2067880010324452485  
                                                            5625*3 /   ------------ + ----------------------- 
                                                                 \/     5787281250            77163750        
$$x_{3} = - \frac{19}{75} + \frac{361}{5625 \sqrt[3]{\frac{\sqrt{2067880010324452485}}{77163750} + \frac{107850980113}{5787281250}}} + \sqrt[3]{\frac{\sqrt{2067880010324452485}}{77163750} + \frac{107850980113}{5787281250}}$$
x3 = -19/75 + 361/(5625*(sqrt(2067880010324452485)/77163750 + 107850980113/5787281250)^(1/3)) + (sqrt(2067880010324452485)/77163750 + 107850980113/5787281250)^(1/3)
Respuesta numérica [src]
x1 = -1.9331192361471 + 2.87619691685779*i
x2 = 3.1062384722942
x3 = -1.9331192361471 - 2.87619691685779*i
x3 = -1.9331192361471 - 2.87619691685779*i