8x^3=392x

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Solution for 8x^3=392x equation:


Simplifying
8x3 = 392x

Solving
8x3 = 392x

Solving for variable 'x'.

Reorder the terms:
-392x + 8x3 = 392x + -392x

Combine like terms: 392x + -392x = 0
-392x + 8x3 = 0

Factor out the Greatest Common Factor (GCF), '8x'.
8x(-49 + x2) = 0

Factor a difference between two squares.
8x((7 + x)(-7 + x)) = 0

Ignore the factor 8.

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 '(7 + x)' equal to zero and attempt to solve: Simplifying 7 + x = 0 Solving 7 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + x = 0 + -7 x = 0 + -7 Combine like terms: 0 + -7 = -7 x = -7 Simplifying x = -7

Subproblem 3

Set the factor '(-7 + x)' equal to zero and attempt to solve: Simplifying -7 + x = 0 Solving -7 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + x = 0 + 7 Combine like terms: -7 + 7 = 0 0 + x = 0 + 7 x = 0 + 7 Combine like terms: 0 + 7 = 7 x = 7 Simplifying x = 7

Solution

x = {0, -7, 7}

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