9x^2(x+1)(x-1)=0

Solution for 9x^2(x+1)(x-1)=0 equation:

Simplifying
9x2(x + 1)(x + -1) = 0

Reorder the terms:
9x2(1 + x)(x + -1) = 0

Reorder the terms:
9x2(1 + x)(-1 + x) = 0

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

Combine like terms: 1x + -1x = 0
9x2(-1 + 0 + x2) = 0
9x2(-1 + x2) = 0
(-1 * 9x2 + x2 * 9x2) = 0
(-9x2 + 9x4) = 0

Solving
-9x2 + 9x4 = 0

Solving for variable 'x'.

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

Factor a difference between two squares.
9x2((1 + x)(-1 + x)) = 0

Ignore the factor 9.
Subproblem 1
Set the factor 'x2' equal to zero and attempt to solve:

Simplifying
x2 = 0

Solving
x2 = 0

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

Simplifying
x2 = 0

Take the square root of each side:
x = {0}
Subproblem 2
Set the factor '(1 + x)' equal to zero and attempt to solve:

Simplifying
1 + x = 0

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

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

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

Simplifying
x = -1
Subproblem 3
Set the factor '(-1 + x)' equal to zero and attempt to solve:

Simplifying
-1 + x = 0

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

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

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

Simplifying
x = 1
Solution
x = {0, -1, 1}