(3x+3)(x+5)=0

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Solution for (3x+3)(x+5)=0 equation:


Simplifying
(3x + 3)(x + 5) = 0

Reorder the terms:
(3 + 3x)(x + 5) = 0

Reorder the terms:
(3 + 3x)(5 + x) = 0

Multiply (3 + 3x) * (5 + x)
(3(5 + x) + 3x * (5 + x)) = 0
((5 * 3 + x * 3) + 3x * (5 + x)) = 0
((15 + 3x) + 3x * (5 + x)) = 0
(15 + 3x + (5 * 3x + x * 3x)) = 0
(15 + 3x + (15x + 3x2)) = 0

Combine like terms: 3x + 15x = 18x
(15 + 18x + 3x2) = 0

Solving
15 + 18x + 3x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3'.
3(5 + 6x + x2) = 0

Factor a trinomial.
3((5 + x)(1 + x)) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(5 + x)' equal to zero and attempt to solve: Simplifying 5 + x = 0 Solving 5 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + x = 0 + -5 x = 0 + -5 Combine like terms: 0 + -5 = -5 x = -5 Simplifying x = -5

Subproblem 2

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

Solution

x = {-5, -1}

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