-3(x+2)(x+4)=0

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Solution for -3(x+2)(x+4)=0 equation:


Simplifying
-3(x + 2)(x + 4) = 0

Reorder the terms:
-3(2 + x)(x + 4) = 0

Reorder the terms:
-3(2 + x)(4 + x) = 0

Multiply (2 + x) * (4 + x)
-3(2(4 + x) + x(4 + x)) = 0
-3((4 * 2 + x * 2) + x(4 + x)) = 0
-3((8 + 2x) + x(4 + x)) = 0
-3(8 + 2x + (4 * x + x * x)) = 0
-3(8 + 2x + (4x + x2)) = 0

Combine like terms: 2x + 4x = 6x
-3(8 + 6x + x2) = 0
(8 * -3 + 6x * -3 + x2 * -3) = 0
(-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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