x(2x+2)=312

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Solution for x(2x+2)=312 equation:


Simplifying
x(2x + 2) = 312

Reorder the terms:
x(2 + 2x) = 312
(2 * x + 2x * x) = 312
(2x + 2x2) = 312

Solving
2x + 2x2 = 312

Solving for variable 'x'.

Reorder the terms:
-312 + 2x + 2x2 = 312 + -312

Combine like terms: 312 + -312 = 0
-312 + 2x + 2x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-156 + x + x2) = 0

Factor a trinomial.
2((-13 + -1x)(12 + -1x)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-13 + -1x)' equal to zero and attempt to solve: Simplifying -13 + -1x = 0 Solving -13 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '13' to each side of the equation. -13 + 13 + -1x = 0 + 13 Combine like terms: -13 + 13 = 0 0 + -1x = 0 + 13 -1x = 0 + 13 Combine like terms: 0 + 13 = 13 -1x = 13 Divide each side by '-1'. x = -13 Simplifying x = -13

Subproblem 2

Set the factor '(12 + -1x)' equal to zero and attempt to solve: Simplifying 12 + -1x = 0 Solving 12 + -1x = 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 + -1x = 0 + -12 Combine like terms: 12 + -12 = 0 0 + -1x = 0 + -12 -1x = 0 + -12 Combine like terms: 0 + -12 = -12 -1x = -12 Divide each side by '-1'. x = 12 Simplifying x = 12

Solution

x = {-13, 12}

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