(9x-8)(2x+4)=0

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Solution for (9x-8)(2x+4)=0 equation: 


Simplifying
(9x + -8)(2x + 4) = 0

Reorder the terms:
(-8 + 9x)(2x + 4) = 0

Reorder the terms:
(-8 + 9x)(4 + 2x) = 0

Multiply (-8 + 9x) * (4 + 2x)
(-8(4 + 2x) + 9x * (4 + 2x)) = 0
((4 * -8 + 2x * -8) + 9x * (4 + 2x)) = 0
((-32 + -16x) + 9x * (4 + 2x)) = 0
(-32 + -16x + (4 * 9x + 2x * 9x)) = 0
(-32 + -16x + (36x + 18x2)) = 0

Combine like terms: -16x + 36x = 20x
(-32 + 20x + 18x2) = 0

Solving
-32 + 20x + 18x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '2'.
2(-16 + 10x + 9x2) = 0

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

Ignore the factor 2.

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 '(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 = {-2, 0.8888888889}

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