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

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


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

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

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

Multiply (3 + x) * (4 + 2x)
(3(4 + 2x) + x(4 + 2x)) = 0
((4 * 3 + 2x * 3) + x(4 + 2x)) = 0
((12 + 6x) + x(4 + 2x)) = 0
(12 + 6x + (4 * x + 2x * x)) = 0
(12 + 6x + (4x + 2x2)) = 0

Combine like terms: 6x + 4x = 10x
(12 + 10x + 2x2) = 0

Solving
12 + 10x + 2x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '2'.
2(6 + 5x + x2) = 0

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

Ignore the factor 2.

Subproblem 1

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

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 = {-3, -2}

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