0=x^2+12x+20

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Solution for 0=x^2+12x+20 equation:


Simplifying
0 = x2 + 12x + 20

Reorder the terms:
0 = 20 + 12x + x2

Solving
0 = 20 + 12x + x2

Solving for variable 'x'.

Combine like terms: 0 + -20 = -20
-20 + -12x + -1x2 = 20 + 12x + x2 + -20 + -12x + -1x2

Reorder the terms:
-20 + -12x + -1x2 = 20 + -20 + 12x + -12x + x2 + -1x2

Combine like terms: 20 + -20 = 0
-20 + -12x + -1x2 = 0 + 12x + -12x + x2 + -1x2
-20 + -12x + -1x2 = 12x + -12x + x2 + -1x2

Combine like terms: 12x + -12x = 0
-20 + -12x + -1x2 = 0 + x2 + -1x2
-20 + -12x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-20 + -12x + -1x2 = 0

Factor out the Greatest Common Factor (GCF), '-1'.
-1(20 + 12x + x2) = 0

Factor a trinomial.
-1((10 + x)(2 + x)) = 0

Ignore the factor -1.

Subproblem 1

Set the factor '(10 + x)' equal to zero and attempt to solve: Simplifying 10 + x = 0 Solving 10 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + x = 0 + -10 Combine like terms: 10 + -10 = 0 0 + x = 0 + -10 x = 0 + -10 Combine like terms: 0 + -10 = -10 x = -10 Simplifying x = -10

Subproblem 2

Set the factor '(2 + x)' equal to zero and attempt to solve: Simplifying 2 + x = 0 Solving 2 + x = 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 + x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + x = 0 + -2 x = 0 + -2 Combine like terms: 0 + -2 = -2 x = -2 Simplifying x = -2

Solution

x = {-10, -2}

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