(8x-9)(2x+6)=0

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Solution for (8x-9)(2x+6)=0 equation:


Simplifying
(8x + -9)(2x + 6) = 0

Reorder the terms:
(-9 + 8x)(2x + 6) = 0

Reorder the terms:
(-9 + 8x)(6 + 2x) = 0

Multiply (-9 + 8x) * (6 + 2x)
(-9(6 + 2x) + 8x * (6 + 2x)) = 0
((6 * -9 + 2x * -9) + 8x * (6 + 2x)) = 0
((-54 + -18x) + 8x * (6 + 2x)) = 0
(-54 + -18x + (6 * 8x + 2x * 8x)) = 0
(-54 + -18x + (48x + 16x2)) = 0

Combine like terms: -18x + 48x = 30x
(-54 + 30x + 16x2) = 0

Solving
-54 + 30x + 16x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '2'.
2(-27 + 15x + 8x2) = 0

Factor a trinomial.
2((-3 + -1x)(9 + -8x)) = 0

Ignore the factor 2.

Subproblem 1

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

Subproblem 2

Set the factor '(9 + -8x)' equal to zero and attempt to solve: Simplifying 9 + -8x = 0 Solving 9 + -8x = 0 Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -8x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -8x = 0 + -9 -8x = 0 + -9 Combine like terms: 0 + -9 = -9 -8x = -9 Divide each side by '-8'. x = 1.125 Simplifying x = 1.125

Solution

x = {-3, 1.125}

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