0=4x^3-256x

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Solution for 0=4x^3-256x equation:


Simplifying
0 = 4x3 + -256x

Reorder the terms:
0 = -256x + 4x3

Solving
0 = -256x + 4x3

Solving for variable 'x'.
Remove the zero:
256x + -4x3 = -256x + 4x3 + 256x + -4x3

Reorder the terms:
256x + -4x3 = -256x + 256x + 4x3 + -4x3

Combine like terms: -256x + 256x = 0
256x + -4x3 = 0 + 4x3 + -4x3
256x + -4x3 = 4x3 + -4x3

Combine like terms: 4x3 + -4x3 = 0
256x + -4x3 = 0

Factor out the Greatest Common Factor (GCF), '4x'.
4x(64 + -1x2) = 0

Factor a difference between two squares.
4x((8 + x)(8 + -1x)) = 0

Ignore the factor 4.

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 '(8 + x)' equal to zero and attempt to solve: Simplifying 8 + x = 0 Solving 8 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + x = 0 + -8 Combine like terms: 8 + -8 = 0 0 + x = 0 + -8 x = 0 + -8 Combine like terms: 0 + -8 = -8 x = -8 Simplifying x = -8

Subproblem 3

Set the factor '(8 + -1x)' equal to zero and attempt to solve: Simplifying 8 + -1x = 0 Solving 8 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + -1x = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -1x = 0 + -8 -1x = 0 + -8 Combine like terms: 0 + -8 = -8 -1x = -8 Divide each side by '-1'. x = 8 Simplifying x = 8

Solution

x = {0, -8, 8}

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