0=x^3+4x^2-12x

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Solution for 0=x^3+4x^2-12x equation:


Simplifying
0 = x3 + 4x2 + -12x

Reorder the terms:
0 = -12x + 4x2 + x3

Solving
0 = -12x + 4x2 + x3

Solving for variable 'x'.
Remove the zero:
12x + -4x2 + -1x3 = -12x + 4x2 + x3 + 12x + -4x2 + -1x3

Reorder the terms:
12x + -4x2 + -1x3 = -12x + 12x + 4x2 + -4x2 + x3 + -1x3

Combine like terms: -12x + 12x = 0
12x + -4x2 + -1x3 = 0 + 4x2 + -4x2 + x3 + -1x3
12x + -4x2 + -1x3 = 4x2 + -4x2 + x3 + -1x3

Combine like terms: 4x2 + -4x2 = 0
12x + -4x2 + -1x3 = 0 + x3 + -1x3
12x + -4x2 + -1x3 = x3 + -1x3

Combine like terms: x3 + -1x3 = 0
12x + -4x2 + -1x3 = 0

Factor out the Greatest Common Factor (GCF), 'x'.
x(12 + -4x + -1x2) = 0

Factor a trinomial.
x((2 + -1x)(6 + 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 '(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 + x)' equal to zero and attempt to solve: Simplifying 6 + x = 0 Solving 6 + x = 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 + x = 0 + -6 Combine like terms: 6 + -6 = 0 0 + x = 0 + -6 x = 0 + -6 Combine like terms: 0 + -6 = -6 x = -6 Simplifying x = -6

Solution

x = {0, 2, -6}

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