x(x^2-8)=8x

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Solution for x(x^2-8)=8x equation:


Simplifying
x(x2 + -8) = 8x

Reorder the terms:
x(-8 + x2) = 8x
(-8 * x + x2 * x) = 8x
(-8x + x3) = 8x

Solving
-8x + x3 = 8x

Solving for variable 'x'.

Reorder the terms:
-8x + -8x + x3 = 8x + -8x

Combine like terms: -8x + -8x = -16x
-16x + x3 = 8x + -8x

Combine like terms: 8x + -8x = 0
-16x + x3 = 0

Factor out the Greatest Common Factor (GCF), 'x'.
x(-16 + x2) = 0

Factor a difference between two squares.
x((4 + x)(-4 + x)) = 0

Subproblem 1

Set the factor 'x' equal to zero and attempt to solve: Simplifying x = 0 Solving x = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x = 0

Subproblem 2

Set the factor '(4 + x)' equal to zero and attempt to solve: Simplifying 4 + x = 0 Solving 4 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + x = 0 + -4 x = 0 + -4 Combine like terms: 0 + -4 = -4 x = -4 Simplifying x = -4

Subproblem 3

Set the factor '(-4 + x)' equal to zero and attempt to solve: Simplifying -4 + x = 0 Solving -4 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = 0 + 4 Combine like terms: -4 + 4 = 0 0 + x = 0 + 4 x = 0 + 4 Combine like terms: 0 + 4 = 4 x = 4 Simplifying x = 4

Solution

x = {0, -4, 4}

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