(2x-12)(3x+15)=0

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Solution for (2x-12)(3x+15)=0 equation:


Simplifying
(2x + -12)(3x + 15) = 0

Reorder the terms:
(-12 + 2x)(3x + 15) = 0

Reorder the terms:
(-12 + 2x)(15 + 3x) = 0

Multiply (-12 + 2x) * (15 + 3x)
(-12(15 + 3x) + 2x * (15 + 3x)) = 0
((15 * -12 + 3x * -12) + 2x * (15 + 3x)) = 0
((-180 + -36x) + 2x * (15 + 3x)) = 0
(-180 + -36x + (15 * 2x + 3x * 2x)) = 0
(-180 + -36x + (30x + 6x2)) = 0

Combine like terms: -36x + 30x = -6x
(-180 + -6x + 6x2) = 0

Solving
-180 + -6x + 6x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '6'.
6(-30 + -1x + x2) = 0

Factor a trinomial.
6((-5 + -1x)(6 + -1x)) = 0

Ignore the factor 6.

Subproblem 1

Set the factor '(-5 + -1x)' equal to zero and attempt to solve: Simplifying -5 + -1x = 0 Solving -5 + -1x = 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 + -1x = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -1x = 0 + 5 -1x = 0 + 5 Combine like terms: 0 + 5 = 5 -1x = 5 Divide each side by '-1'. x = -5 Simplifying x = -5

Subproblem 2

Set the factor '(6 + -1x)' equal to zero and attempt to solve: Simplifying 6 + -1x = 0 Solving 6 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + -1x = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -1x = 0 + -6 -1x = 0 + -6 Combine like terms: 0 + -6 = -6 -1x = -6 Divide each side by '-1'. x = 6 Simplifying x = 6

Solution

x = {-5, 6}

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