6(2a^2+3a)=18-12a

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Solution for 6(2a^2+3a)=18-12a equation:


Simplifying
6(2a2 + 3a) = 18 + -12a

Reorder the terms:
6(3a + 2a2) = 18 + -12a
(3a * 6 + 2a2 * 6) = 18 + -12a
(18a + 12a2) = 18 + -12a

Solving
18a + 12a2 = 18 + -12a

Solving for variable 'a'.

Reorder the terms:
-18 + 18a + 12a + 12a2 = 18 + -12a + -18 + 12a

Combine like terms: 18a + 12a = 30a
-18 + 30a + 12a2 = 18 + -12a + -18 + 12a

Reorder the terms:
-18 + 30a + 12a2 = 18 + -18 + -12a + 12a

Combine like terms: 18 + -18 = 0
-18 + 30a + 12a2 = 0 + -12a + 12a
-18 + 30a + 12a2 = -12a + 12a

Combine like terms: -12a + 12a = 0
-18 + 30a + 12a2 = 0

Factor out the Greatest Common Factor (GCF), '6'.
6(-3 + 5a + 2a2) = 0

Factor a trinomial.
6((-3 + -1a)(1 + -2a)) = 0

Ignore the factor 6.

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 '(1 + -2a)' equal to zero and attempt to solve: Simplifying 1 + -2a = 0 Solving 1 + -2a = 0 Move all terms containing a to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -2a = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -2a = 0 + -1 -2a = 0 + -1 Combine like terms: 0 + -1 = -1 -2a = -1 Divide each side by '-2'. a = 0.5 Simplifying a = 0.5

Solution

a = {-3, 0.5}

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