(5x-5)(9x+1)=0

Solution for (5x-5)(9x+1)=0 equation:

Simplifying
(5x + -5)(9x + 1) = 0

Reorder the terms:
(-5 + 5x)(9x + 1) = 0

Reorder the terms:
(-5 + 5x)(1 + 9x) = 0

Multiply (-5 + 5x) * (1 + 9x)
(-5(1 + 9x) + 5x * (1 + 9x)) = 0
((1 * -5 + 9x * -5) + 5x * (1 + 9x)) = 0
((-5 + -45x) + 5x * (1 + 9x)) = 0
(-5 + -45x + (1 * 5x + 9x * 5x)) = 0
(-5 + -45x + (5x + 45x2)) = 0

Combine like terms: -45x + 5x = -40x
(-5 + -40x + 45x2) = 0

Solving
-5 + -40x + 45x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '5'.
5(-1 + -8x + 9x2) = 0

Factor a trinomial.
5((-1 + -9x)(1 + -1x)) = 0

Ignore the factor 5.
Subproblem 1
Set the factor '(-1 + -9x)' equal to zero and attempt to solve:

Simplifying
-1 + -9x = 0

Solving
-1 + -9x = 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 + -9x = 0 + 1

Combine like terms: -1 + 1 = 0
0 + -9x = 0 + 1
-9x = 0 + 1

Combine like terms: 0 + 1 = 1
-9x = 1

Divide each side by '-9'.
x = -0.1111111111

Simplifying
x = -0.1111111111
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 = {-0.1111111111, 1}