x(2x+12)=-18

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Solution for x(2x+12)=-18 equation:


Simplifying
x(2x + 12) = -18

Reorder the terms:
x(12 + 2x) = -18
(12 * x + 2x * x) = -18
(12x + 2x2) = -18

Solving
12x + 2x2 = -18

Solving for variable 'x'.

Reorder the terms:
18 + 12x + 2x2 = -18 + 18

Combine like terms: -18 + 18 = 0
18 + 12x + 2x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(9 + 6x + x2) = 0

Factor a trinomial.
2((3 + x)(3 + x)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(3 + x)' equal to zero and attempt to solve: Simplifying 3 + x = 0 Solving 3 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + x = 0 + -3 x = 0 + -3 Combine like terms: 0 + -3 = -3 x = -3 Simplifying x = -3

Subproblem 2

Set the factor '(3 + x)' equal to zero and attempt to solve: Simplifying 3 + x = 0 Solving 3 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + x = 0 + -3 x = 0 + -3 Combine like terms: 0 + -3 = -3 x = -3 Simplifying x = -3

Solution

x = {-3, -3}

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