(3x+12)(x+2)=

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Solution for (3x+12)(x+2)= equation:


Simplifying
(3x + 12)(x + 2) = 0

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

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

Multiply (12 + 3x) * (2 + x)
(12(2 + x) + 3x * (2 + x)) = 0
((2 * 12 + x * 12) + 3x * (2 + x)) = 0
((24 + 12x) + 3x * (2 + x)) = 0
(24 + 12x + (2 * 3x + x * 3x)) = 0
(24 + 12x + (6x + 3x2)) = 0

Combine like terms: 12x + 6x = 18x
(24 + 18x + 3x2) = 0

Solving
24 + 18x + 3x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3'.
3(8 + 6x + x2) = 0

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

Ignore the factor 3.

Subproblem 1

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

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 = {-4, -2}

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