(9x-5)(8x+7)=0

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Solution for (9x-5)(8x+7)=0 equation:


Simplifying
(9x + -5)(8x + 7) = 0

Reorder the terms:
(-5 + 9x)(8x + 7) = 0

Reorder the terms:
(-5 + 9x)(7 + 8x) = 0

Multiply (-5 + 9x) * (7 + 8x)
(-5(7 + 8x) + 9x * (7 + 8x)) = 0
((7 * -5 + 8x * -5) + 9x * (7 + 8x)) = 0
((-35 + -40x) + 9x * (7 + 8x)) = 0
(-35 + -40x + (7 * 9x + 8x * 9x)) = 0
(-35 + -40x + (63x + 72x2)) = 0

Combine like terms: -40x + 63x = 23x
(-35 + 23x + 72x2) = 0

Solving
-35 + 23x + 72x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-7 + -8x)(5 + -9x) = 0

Subproblem 1

Set the factor '(-7 + -8x)' equal to zero and attempt to solve: Simplifying -7 + -8x = 0 Solving -7 + -8x = 0 Move all terms containing x to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + -8x = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -8x = 0 + 7 -8x = 0 + 7 Combine like terms: 0 + 7 = 7 -8x = 7 Divide each side by '-8'. x = -0.875 Simplifying x = -0.875

Subproblem 2

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

Solution

x = {-0.875, 0.5555555556}

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