Mister Exam

Other calculators


x^6=(6x-8)^3

x^6=(6x-8)^3 equation

The teacher will be very surprised to see your correct solution 😉

v

Numerical solution:

Do search numerical solution at [, ]

The solution

You have entered [src]
 6            3
x  = (6*x - 8) 
x6=(6x8)3x^{6} = \left(6 x - 8\right)^{3}
The graph
02468-8-6-4-2141012-50005000
Rapid solution [src]
x_1 = 2
x1=2x_{1} = 2
x_2 = 4
x2=4x_{2} = 4
              /      ___              /    /     ___\\\              /    /     ___\\
        3     |  3*\/ 3    4 _____    |atan\17*\/ 3 /||   4 _____    |atan\17*\/ 3 /|
x_3 = - - + I*|- ------- + \/ 217 *cos|--------------|| + \/ 217 *sin|--------------|
        2     \     2                 \      2       //              \      2       /
x3=32+2174sin(atan(173)2)+i(332+2174cos(atan(173)2))x_{3} = - \frac{3}{2} + \sqrt[4]{217} \sin{\left(\frac{\operatorname{atan}{\left(17 \sqrt{3} \right)}}{2} \right)} + i \left(- \frac{3 \sqrt{3}}{2} + \sqrt[4]{217} \cos{\left(\frac{\operatorname{atan}{\left(17 \sqrt{3} \right)}}{2} \right)}\right)
              /    ___              /    /     ___\\\              /    /     ___\\
        3     |3*\/ 3    4 _____    |atan\17*\/ 3 /||   4 _____    |atan\17*\/ 3 /|
x_4 = - - + I*|------- + \/ 217 *cos|--------------|| - \/ 217 *sin|--------------|
        2     \   2                 \      2       //              \      2       /
x4=2174sin(atan(173)2)32+i(332+2174cos(atan(173)2))x_{4} = - \sqrt[4]{217} \sin{\left(\frac{\operatorname{atan}{\left(17 \sqrt{3} \right)}}{2} \right)} - \frac{3}{2} + i \left(\frac{3 \sqrt{3}}{2} + \sqrt[4]{217} \cos{\left(\frac{\operatorname{atan}{\left(17 \sqrt{3} \right)}}{2} \right)}\right)
              /    ___              /    /     ___\\\              /    /     ___\\
        3     |3*\/ 3    4 _____    |atan\17*\/ 3 /||   4 _____    |atan\17*\/ 3 /|
x_5 = - - + I*|------- - \/ 217 *cos|--------------|| + \/ 217 *sin|--------------|
        2     \   2                 \      2       //              \      2       /
x5=32+2174sin(atan(173)2)+i(2174cos(atan(173)2)+332)x_{5} = - \frac{3}{2} + \sqrt[4]{217} \sin{\left(\frac{\operatorname{atan}{\left(17 \sqrt{3} \right)}}{2} \right)} + i \left(- \sqrt[4]{217} \cos{\left(\frac{\operatorname{atan}{\left(17 \sqrt{3} \right)}}{2} \right)} + \frac{3 \sqrt{3}}{2}\right)
              /      ___              /    /     ___\\\              /    /     ___\\
        3     |  3*\/ 3    4 _____    |atan\17*\/ 3 /||   4 _____    |atan\17*\/ 3 /|
x_6 = - - + I*|- ------- - \/ 217 *cos|--------------|| - \/ 217 *sin|--------------|
        2     \     2                 \      2       //              \      2       /
x6=2174sin(atan(173)2)32+i(2174cos(atan(173)2)332)x_{6} = - \sqrt[4]{217} \sin{\left(\frac{\operatorname{atan}{\left(17 \sqrt{3} \right)}}{2} \right)} - \frac{3}{2} + i \left(- \sqrt[4]{217} \cos{\left(\frac{\operatorname{atan}{\left(17 \sqrt{3} \right)}}{2} \right)} - \frac{3 \sqrt{3}}{2}\right)
Sum and product of roots [src]
sum
                /      ___              /    /     ___\\\              /    /     ___\\           /    ___              /    /     ___\\\              /    /     ___\\           /    ___              /    /     ___\\\              /    /     ___\\           /      ___              /    /     ___\\\              /    /     ___\\
          3     |  3*\/ 3    4 _____    |atan\17*\/ 3 /||   4 _____    |atan\17*\/ 3 /|     3     |3*\/ 3    4 _____    |atan\17*\/ 3 /||   4 _____    |atan\17*\/ 3 /|     3     |3*\/ 3    4 _____    |atan\17*\/ 3 /||   4 _____    |atan\17*\/ 3 /|     3     |  3*\/ 3    4 _____    |atan\17*\/ 3 /||   4 _____    |atan\17*\/ 3 /|
2 + 4 + - - + I*|- ------- + \/ 217 *cos|--------------|| + \/ 217 *sin|--------------| + - - + I*|------- + \/ 217 *cos|--------------|| - \/ 217 *sin|--------------| + - - + I*|------- - \/ 217 *cos|--------------|| + \/ 217 *sin|--------------| + - - + I*|- ------- - \/ 217 *cos|--------------|| - \/ 217 *sin|--------------|
          2     \     2                 \      2       //              \      2       /     2     \   2                 \      2       //              \      2       /     2     \   2                 \      2       //              \      2       /     2     \     2                 \      2       //              \      2       /
(2)+(4)+(32+2174sin(atan(173)2)+i(332+2174cos(atan(173)2)))+(2174sin(atan(173)2)32+i(332+2174cos(atan(173)2)))+(32+2174sin(atan(173)2)+i(2174cos(atan(173)2)+332))+(2174sin(atan(173)2)32+i(2174cos(atan(173)2)332))\left(2\right) + \left(4\right) + \left(- \frac{3}{2} + \sqrt[4]{217} \sin{\left(\frac{\operatorname{atan}{\left(17 \sqrt{3} \right)}}{2} \right)} + i \left(- \frac{3 \sqrt{3}}{2} + \sqrt[4]{217} \cos{\left(\frac{\operatorname{atan}{\left(17 \sqrt{3} \right)}}{2} \right)}\right)\right) + \left(- \sqrt[4]{217} \sin{\left(\frac{\operatorname{atan}{\left(17 \sqrt{3} \right)}}{2} \right)} - \frac{3}{2} + i \left(\frac{3 \sqrt{3}}{2} + \sqrt[4]{217} \cos{\left(\frac{\operatorname{atan}{\left(17 \sqrt{3} \right)}}{2} \right)}\right)\right) + \left(- \frac{3}{2} + \sqrt[4]{217} \sin{\left(\frac{\operatorname{atan}{\left(17 \sqrt{3} \right)}}{2} \right)} + i \left(- \sqrt[4]{217} \cos{\left(\frac{\operatorname{atan}{\left(17 \sqrt{3} \right)}}{2} \right)} + \frac{3 \sqrt{3}}{2}\right)\right) + \left(- \sqrt[4]{217} \sin{\left(\frac{\operatorname{atan}{\left(17 \sqrt{3} \right)}}{2} \right)} - \frac{3}{2} + i \left(- \sqrt[4]{217} \cos{\left(\frac{\operatorname{atan}{\left(17 \sqrt{3} \right)}}{2} \right)} - \frac{3 \sqrt{3}}{2}\right)\right)
=
  /      ___              /    /     ___\\\     /      ___              /    /     ___\\\     /    ___              /    /     ___\\\     /    ___              /    /     ___\\\
  |  3*\/ 3    4 _____    |atan\17*\/ 3 /||     |  3*\/ 3    4 _____    |atan\17*\/ 3 /||     |3*\/ 3    4 _____    |atan\17*\/ 3 /||     |3*\/ 3    4 _____    |atan\17*\/ 3 /||
I*|- ------- + \/ 217 *cos|--------------|| + I*|- ------- - \/ 217 *cos|--------------|| + I*|------- + \/ 217 *cos|--------------|| + I*|------- - \/ 217 *cos|--------------||
  \     2                 \      2       //     \     2                 \      2       //     \   2                 \      2       //     \   2                 \      2       //
i(2174cos(atan(173)2)332)+i(2174cos(atan(173)2)+332)+i(332+2174cos(atan(173)2))+i(332+2174cos(atan(173)2))i \left(- \sqrt[4]{217} \cos{\left(\frac{\operatorname{atan}{\left(17 \sqrt{3} \right)}}{2} \right)} - \frac{3 \sqrt{3}}{2}\right) + i \left(- \sqrt[4]{217} \cos{\left(\frac{\operatorname{atan}{\left(17 \sqrt{3} \right)}}{2} \right)} + \frac{3 \sqrt{3}}{2}\right) + i \left(- \frac{3 \sqrt{3}}{2} + \sqrt[4]{217} \cos{\left(\frac{\operatorname{atan}{\left(17 \sqrt{3} \right)}}{2} \right)}\right) + i \left(\frac{3 \sqrt{3}}{2} + \sqrt[4]{217} \cos{\left(\frac{\operatorname{atan}{\left(17 \sqrt{3} \right)}}{2} \right)}\right)
product
                /      ___              /    /     ___\\\              /    /     ___\\           /    ___              /    /     ___\\\              /    /     ___\\           /    ___              /    /     ___\\\              /    /     ___\\           /      ___              /    /     ___\\\              /    /     ___\\
          3     |  3*\/ 3    4 _____    |atan\17*\/ 3 /||   4 _____    |atan\17*\/ 3 /|     3     |3*\/ 3    4 _____    |atan\17*\/ 3 /||   4 _____    |atan\17*\/ 3 /|     3     |3*\/ 3    4 _____    |atan\17*\/ 3 /||   4 _____    |atan\17*\/ 3 /|     3     |  3*\/ 3    4 _____    |atan\17*\/ 3 /||   4 _____    |atan\17*\/ 3 /|
2 * 4 * - - + I*|- ------- + \/ 217 *cos|--------------|| + \/ 217 *sin|--------------| * - - + I*|------- + \/ 217 *cos|--------------|| - \/ 217 *sin|--------------| * - - + I*|------- - \/ 217 *cos|--------------|| + \/ 217 *sin|--------------| * - - + I*|- ------- - \/ 217 *cos|--------------|| - \/ 217 *sin|--------------|
          2     \     2                 \      2       //              \      2       /     2     \   2                 \      2       //              \      2       /     2     \   2                 \      2       //              \      2       /     2     \     2                 \      2       //              \      2       /
(2)(4)(32+2174sin(atan(173)2)+i(332+2174cos(atan(173)2)))(2174sin(atan(173)2)32+i(332+2174cos(atan(173)2)))(32+2174sin(atan(173)2)+i(2174cos(atan(173)2)+332))(2174sin(atan(173)2)32+i(2174cos(atan(173)2)332))\left(2\right) * \left(4\right) * \left(- \frac{3}{2} + \sqrt[4]{217} \sin{\left(\frac{\operatorname{atan}{\left(17 \sqrt{3} \right)}}{2} \right)} + i \left(- \frac{3 \sqrt{3}}{2} + \sqrt[4]{217} \cos{\left(\frac{\operatorname{atan}{\left(17 \sqrt{3} \right)}}{2} \right)}\right)\right) * \left(- \sqrt[4]{217} \sin{\left(\frac{\operatorname{atan}{\left(17 \sqrt{3} \right)}}{2} \right)} - \frac{3}{2} + i \left(\frac{3 \sqrt{3}}{2} + \sqrt[4]{217} \cos{\left(\frac{\operatorname{atan}{\left(17 \sqrt{3} \right)}}{2} \right)}\right)\right) * \left(- \frac{3}{2} + \sqrt[4]{217} \sin{\left(\frac{\operatorname{atan}{\left(17 \sqrt{3} \right)}}{2} \right)} + i \left(- \sqrt[4]{217} \cos{\left(\frac{\operatorname{atan}{\left(17 \sqrt{3} \right)}}{2} \right)} + \frac{3 \sqrt{3}}{2}\right)\right) * \left(- \sqrt[4]{217} \sin{\left(\frac{\operatorname{atan}{\left(17 \sqrt{3} \right)}}{2} \right)} - \frac{3}{2} + i \left(- \sqrt[4]{217} \cos{\left(\frac{\operatorname{atan}{\left(17 \sqrt{3} \right)}}{2} \right)} - \frac{3 \sqrt{3}}{2}\right)\right)
=
512
512512
Numerical answer [src]
x1 = 1.16748194582983 + 0.161536067813473*i
x2 = 1.16748194582983 - 0.161536067813473*i
x3 = -4.16748194582983 + 5.3576884905201*i
x4 = -4.16748194582983 - 5.3576884905201*i
x5 = 2.0
x6 = 4.0
x6 = 4.0
The graph
x^6=(6x-8)^3 equation