5x(3x+12)=180

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Solution for 5x(3x+12)=180 equation:


Simplifying
5x(3x + 12) = 180

Reorder the terms:
5x(12 + 3x) = 180
(12 * 5x + 3x * 5x) = 180
(60x + 15x2) = 180

Solving
60x + 15x2 = 180

Solving for variable 'x'.

Reorder the terms:
-180 + 60x + 15x2 = 180 + -180

Combine like terms: 180 + -180 = 0
-180 + 60x + 15x2 = 0

Factor out the Greatest Common Factor (GCF), '15'.
15(-12 + 4x + x2) = 0

Factor a trinomial.
15((-6 + -1x)(2 + -1x)) = 0

Ignore the factor 15.

Subproblem 1

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

Subproblem 2

Set the factor '(2 + -1x)' equal to zero and attempt to solve: Simplifying 2 + -1x = 0 Solving 2 + -1x = 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 + -1x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1x = 0 + -2 -1x = 0 + -2 Combine like terms: 0 + -2 = -2 -1x = -2 Divide each side by '-1'. x = 2 Simplifying x = 2

Solution

x = {-6, 2}

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