(3x-9)(8x+6)=0

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Solution for (3x-9)(8x+6)=0 equation:


Simplifying
(3x + -9)(8x + 6) = 0

Reorder the terms:
(-9 + 3x)(8x + 6) = 0

Reorder the terms:
(-9 + 3x)(6 + 8x) = 0

Multiply (-9 + 3x) * (6 + 8x)
(-9(6 + 8x) + 3x * (6 + 8x)) = 0
((6 * -9 + 8x * -9) + 3x * (6 + 8x)) = 0
((-54 + -72x) + 3x * (6 + 8x)) = 0
(-54 + -72x + (6 * 3x + 8x * 3x)) = 0
(-54 + -72x + (18x + 24x2)) = 0

Combine like terms: -72x + 18x = -54x
(-54 + -54x + 24x2) = 0

Solving
-54 + -54x + 24x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '6'.
6(-9 + -9x + 4x2) = 0

Factor a trinomial.
6((-3 + -4x)(3 + -1x)) = 0

Ignore the factor 6.

Subproblem 1

Set the factor '(-3 + -4x)' equal to zero and attempt to solve: Simplifying -3 + -4x = 0 Solving -3 + -4x = 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 + -4x = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -4x = 0 + 3 -4x = 0 + 3 Combine like terms: 0 + 3 = 3 -4x = 3 Divide each side by '-4'. x = -0.75 Simplifying x = -0.75

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 = {-0.75, 3}

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