-3(x^2+8x+15)=0

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Solution for -3(x^2+8x+15)=0 equation:


Simplifying
-3(x2 + 8x + 15) = 0

Reorder the terms:
-3(15 + 8x + x2) = 0
(15 * -3 + 8x * -3 + x2 * -3) = 0
(-45 + -24x + -3x2) = 0

Solving
-45 + -24x + -3x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '-3'.
-3(15 + 8x + x2) = 0

Factor a trinomial.
-3((5 + x)(3 + 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 '(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

Solution

x = {-5, -3}

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