-x^2-13x=12

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Solution for -x^2-13x=12 equation:


Simplifying
-1x2 + -13x = 12

Reorder the terms:
-13x + -1x2 = 12

Solving
-13x + -1x2 = 12

Solving for variable 'x'.

Reorder the terms:
-12 + -13x + -1x2 = 12 + -12

Combine like terms: 12 + -12 = 0
-12 + -13x + -1x2 = 0

Factor out the Greatest Common Factor (GCF), '-1'.
-1(12 + 13x + x2) = 0

Factor a trinomial.
-1((12 + x)(1 + x)) = 0

Ignore the factor -1.

Subproblem 1

Set the factor '(12 + x)' equal to zero and attempt to solve: Simplifying 12 + x = 0 Solving 12 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-12' to each side of the equation. 12 + -12 + x = 0 + -12 Combine like terms: 12 + -12 = 0 0 + x = 0 + -12 x = 0 + -12 Combine like terms: 0 + -12 = -12 x = -12 Simplifying x = -12

Subproblem 2

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

Solution

x = {-12, -1}

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