6x^2+15x-135=-12x

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Solution for 6x^2+15x-135=-12x equation:


Simplifying
6x2 + 15x + -135 = -12x

Reorder the terms:
-135 + 15x + 6x2 = -12x

Solving
-135 + 15x + 6x2 = -12x

Solving for variable 'x'.

Reorder the terms:
-135 + 15x + 12x + 6x2 = -12x + 12x

Combine like terms: 15x + 12x = 27x
-135 + 27x + 6x2 = -12x + 12x

Combine like terms: -12x + 12x = 0
-135 + 27x + 6x2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(-45 + 9x + 2x2) = 0

Factor a trinomial.
3((-15 + -2x)(3 + -1x)) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(-15 + -2x)' equal to zero and attempt to solve: Simplifying -15 + -2x = 0 Solving -15 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '15' to each side of the equation. -15 + 15 + -2x = 0 + 15 Combine like terms: -15 + 15 = 0 0 + -2x = 0 + 15 -2x = 0 + 15 Combine like terms: 0 + 15 = 15 -2x = 15 Divide each side by '-2'. x = -7.5 Simplifying x = -7.5

Subproblem 2

Set the factor '(3 + -1x)' equal to zero and attempt to solve: Simplifying 3 + -1x = 0 Solving 3 + -1x = 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 + -1x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1x = 0 + -3 -1x = 0 + -3 Combine like terms: 0 + -3 = -3 -1x = -3 Divide each side by '-1'. x = 3 Simplifying x = 3

Solution

x = {-7.5, 3}

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