(9x+5)(4x-12)=0

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Solution for (9x+5)(4x-12)=0 equation:


Simplifying
(9x + 5)(4x + -12) = 0

Reorder the terms:
(5 + 9x)(4x + -12) = 0

Reorder the terms:
(5 + 9x)(-12 + 4x) = 0

Multiply (5 + 9x) * (-12 + 4x)
(5(-12 + 4x) + 9x * (-12 + 4x)) = 0
((-12 * 5 + 4x * 5) + 9x * (-12 + 4x)) = 0
((-60 + 20x) + 9x * (-12 + 4x)) = 0
(-60 + 20x + (-12 * 9x + 4x * 9x)) = 0
(-60 + 20x + (-108x + 36x2)) = 0

Combine like terms: 20x + -108x = -88x
(-60 + -88x + 36x2) = 0

Solving
-60 + -88x + 36x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '4'.
4(-15 + -22x + 9x2) = 0

Factor a trinomial.
4((-5 + -9x)(3 + -1x)) = 0

Ignore the factor 4.

Subproblem 1

Set the factor '(-5 + -9x)' equal to zero and attempt to solve: Simplifying -5 + -9x = 0 Solving -5 + -9x = 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 + -9x = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -9x = 0 + 5 -9x = 0 + 5 Combine like terms: 0 + 5 = 5 -9x = 5 Divide each side by '-9'. x = -0.5555555556 Simplifying x = -0.5555555556

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 = {-0.5555555556, 3}

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