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

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


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

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

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

Multiply (2 + 9x) * (-8 + 8x)
(2(-8 + 8x) + 9x * (-8 + 8x)) = 0
((-8 * 2 + 8x * 2) + 9x * (-8 + 8x)) = 0
((-16 + 16x) + 9x * (-8 + 8x)) = 0
(-16 + 16x + (-8 * 9x + 8x * 9x)) = 0
(-16 + 16x + (-72x + 72x2)) = 0

Combine like terms: 16x + -72x = -56x
(-16 + -56x + 72x2) = 0

Solving
-16 + -56x + 72x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '8'.
8(-2 + -7x + 9x2) = 0

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

Ignore the factor 8.

Subproblem 1
Set the factor '(-2 + -9x)' equal to zero and attempt to solve:

Simplifying
-2 + -9x = 0

Solving
-2 + -9x = 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 + -9x = 0 + 2

Combine like terms: -2 + 2 = 0
0 + -9x = 0 + 2
-9x = 0 + 2

Combine like terms: 0 + 2 = 2
-9x = 2

Divide each side by '-9'.
x = -0.2222222222

Simplifying
x = -0.2222222222

Subproblem 2
Set the factor '(1 + -1x)' equal to zero and attempt to solve:

Simplifying
1 + -1x = 0

Solving
1 + -1x = 0

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

Add '-1' to each side of the equation.
1 + -1 + -1x = 0 + -1

Combine like terms: 1 + -1 = 0
0 + -1x = 0 + -1
-1x = 0 + -1

Combine like terms: 0 + -1 = -1
-1x = -1

Divide each side by '-1'.
x = 1

Simplifying
x = 1
Solution
x = {-0.2222222222, 1}

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