9x^2-900=0

Solution for 9x^2-900=0 equation:

Simplifying
9x2 + -900 = 0

Reorder the terms:
-900 + 9x2 = 0

Solving
-900 + 9x2 = 0

Solving for variable 'x'.

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

Add '900' to each side of the equation.
-900 + 900 + 9x2 = 0 + 900

Combine like terms: -900 + 900 = 0
0 + 9x2 = 0 + 900
9x2 = 0 + 900

Combine like terms: 0 + 900 = 900
9x2 = 900

Divide each side by '9'.
x2 = 100

Simplifying
x2 = 100

Take the square root of each side:
x = {-10, 10}