(5x-6)(3x+6)=0

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Solution for (5x-6)(3x+6)=0 equation:


Simplifying
(5x + -6)(3x + 6) = 0

Reorder the terms:
(-6 + 5x)(3x + 6) = 0

Reorder the terms:
(-6 + 5x)(6 + 3x) = 0

Multiply (-6 + 5x) * (6 + 3x)
(-6(6 + 3x) + 5x * (6 + 3x)) = 0
((6 * -6 + 3x * -6) + 5x * (6 + 3x)) = 0
((-36 + -18x) + 5x * (6 + 3x)) = 0
(-36 + -18x + (6 * 5x + 3x * 5x)) = 0
(-36 + -18x + (30x + 15x2)) = 0

Combine like terms: -18x + 30x = 12x
(-36 + 12x + 15x2) = 0

Solving
-36 + 12x + 15x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3'.
3(-12 + 4x + 5x2) = 0

Factor a trinomial.
3((-2 + -1x)(6 + -5x)) = 0

Ignore the factor 3.

Subproblem 1

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

Subproblem 2

Set the factor '(6 + -5x)' equal to zero and attempt to solve: Simplifying 6 + -5x = 0 Solving 6 + -5x = 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 + -5x = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -5x = 0 + -6 -5x = 0 + -6 Combine like terms: 0 + -6 = -6 -5x = -6 Divide each side by '-5'. x = 1.2 Simplifying x = 1.2

Solution

x = {-2, 1.2}

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