1.25x^2-180=0

Solution for 1.25x^2-180=0 equation:

Simplifying
1.25x2 + -180 = 0

Reorder the terms:
-180 + 1.25x2 = 0

Solving
-180 + 1.25x2 = 0

Solving for variable 'x'.

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

Add '180' to each side of the equation.
-180 + 180 + 1.25x2 = 0 + 180

Combine like terms: -180 + 180 = 0
0 + 1.25x2 = 0 + 180
1.25x2 = 0 + 180

Combine like terms: 0 + 180 = 180
1.25x2 = 180

Divide each side by '1.25'.
x2 = 144

Simplifying
x2 = 144

Take the square root of each side:
x = {-12, 12}