(2a+1)(3a+12)=0

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Solution for (2a+1)(3a+12)=0 equation:


Simplifying
(2a + 1)(3a + 12) = 0

Reorder the terms:
(1 + 2a)(3a + 12) = 0

Reorder the terms:
(1 + 2a)(12 + 3a) = 0

Multiply (1 + 2a) * (12 + 3a)
(1(12 + 3a) + 2a * (12 + 3a)) = 0
((12 * 1 + 3a * 1) + 2a * (12 + 3a)) = 0
((12 + 3a) + 2a * (12 + 3a)) = 0
(12 + 3a + (12 * 2a + 3a * 2a)) = 0
(12 + 3a + (24a + 6a2)) = 0

Combine like terms: 3a + 24a = 27a
(12 + 27a + 6a2) = 0

Solving
12 + 27a + 6a2 = 0

Solving for variable 'a'.

Factor out the Greatest Common Factor (GCF), '3'.
3(4 + 9a + 2a2) = 0

Factor a trinomial.
3((4 + a)(1 + 2a)) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(4 + a)' equal to zero and attempt to solve: Simplifying 4 + a = 0 Solving 4 + a = 0 Move all terms containing a to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + a = 0 + -4 Combine like terms: 4 + -4 = 0 0 + a = 0 + -4 a = 0 + -4 Combine like terms: 0 + -4 = -4 a = -4 Simplifying a = -4

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 = {-4, -0.5}

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