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

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


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

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

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

Multiply (8 + 5x) * (-8 + 9x)
(8(-8 + 9x) + 5x * (-8 + 9x)) = 0
((-8 * 8 + 9x * 8) + 5x * (-8 + 9x)) = 0
((-64 + 72x) + 5x * (-8 + 9x)) = 0
(-64 + 72x + (-8 * 5x + 9x * 5x)) = 0
(-64 + 72x + (-40x + 45x2)) = 0

Combine like terms: 72x + -40x = 32x
(-64 + 32x + 45x2) = 0

Solving
-64 + 32x + 45x2 = 0

Solving for variable 'x'.

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


Subproblem 1
Set the factor '(-8 + -5x)' equal to zero and attempt to solve:

Simplifying
-8 + -5x = 0

Solving
-8 + -5x = 0

Move all terms containing x to the left, all other terms to the right.

Add '8' to each side of the equation.
-8 + 8 + -5x = 0 + 8

Combine like terms: -8 + 8 = 0
0 + -5x = 0 + 8
-5x = 0 + 8

Combine like terms: 0 + 8 = 8
-5x = 8

Divide each side by '-5'.
x = -1.6

Simplifying
x = -1.6

Subproblem 2
Set the factor '(8 + -9x)' equal to zero and attempt to solve:

Simplifying
8 + -9x = 0

Solving
8 + -9x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-8' to each side of the equation.
8 + -8 + -9x = 0 + -8

Combine like terms: 8 + -8 = 0
0 + -9x = 0 + -8
-9x = 0 + -8

Combine like terms: 0 + -8 = -8
-9x = -8

Divide each side by '-9'.
x = 0.8888888889

Simplifying
x = 0.8888888889
Solution
x = {-1.6, 0.8888888889}

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