x^3=4x^2+12x

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Solution for x^3=4x^2+12x equation:


Simplifying
x3 = 4x2 + 12x

Reorder the terms:
x3 = 12x + 4x2

Solving
x3 = 12x + 4x2

Solving for variable 'x'.

Reorder the terms:
-12x + -4x2 + x3 = 12x + 4x2 + -12x + -4x2

Reorder the terms:
-12x + -4x2 + x3 = 12x + -12x + 4x2 + -4x2

Combine like terms: 12x + -12x = 0
-12x + -4x2 + x3 = 0 + 4x2 + -4x2
-12x + -4x2 + x3 = 4x2 + -4x2

Combine like terms: 4x2 + -4x2 = 0
-12x + -4x2 + x3 = 0

Factor out the Greatest Common Factor (GCF), 'x'.
x(-12 + -4x + x2) = 0

Factor a trinomial.
x((-2 + -1x)(6 + -1x)) = 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 '(-2 + -1x)' equal to zero and attempt to solve: Simplifying -2 + -1x = 0 Solving -2 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -1x = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -1x = 0 + 2 -1x = 0 + 2 Combine like terms: 0 + 2 = 2 -1x = 2 Divide each side by '-1'. x = -2 Simplifying x = -2

Subproblem 3

Set the factor '(6 + -1x)' equal to zero and attempt to solve: Simplifying 6 + -1x = 0 Solving 6 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + -1x = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -1x = 0 + -6 -1x = 0 + -6 Combine like terms: 0 + -6 = -6 -1x = -6 Divide each side by '-1'. x = 6 Simplifying x = 6

Solution

x = {0, -2, 6}

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