2a^2+2a=12

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Solution for 2a^2+2a=12 equation:


Simplifying
2a2 + 2a = 12

Reorder the terms:
2a + 2a2 = 12

Solving
2a + 2a2 = 12

Solving for variable 'a'.

Reorder the terms:
-12 + 2a + 2a2 = 12 + -12

Combine like terms: 12 + -12 = 0
-12 + 2a + 2a2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-6 + a + a2) = 0

Factor a trinomial.
2((-3 + -1a)(2 + -1a)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-3 + -1a)' equal to zero and attempt to solve: Simplifying -3 + -1a = 0 Solving -3 + -1a = 0 Move all terms containing a to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + -1a = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -1a = 0 + 3 -1a = 0 + 3 Combine like terms: 0 + 3 = 3 -1a = 3 Divide each side by '-1'. a = -3 Simplifying a = -3

Subproblem 2

Set the factor '(2 + -1a)' equal to zero and attempt to solve: Simplifying 2 + -1a = 0 Solving 2 + -1a = 0 Move all terms containing a to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1a = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1a = 0 + -2 -1a = 0 + -2 Combine like terms: 0 + -2 = -2 -1a = -2 Divide each side by '-1'. a = 2 Simplifying a = 2

Solution

a = {-3, 2}

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