0.25x^2-18=0

Solution for 0.25x^2-18=0 equation:

Simplifying
0.25x2 + -18 = 0

Reorder the terms:
-18 + 0.25x2 = 0

Solving
-18 + 0.25x2 = 0

Solving for variable 'x'.

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

Add '18' to each side of the equation.
-18 + 18 + 0.25x2 = 0 + 18

Combine like terms: -18 + 18 = 0
0 + 0.25x2 = 0 + 18
0.25x2 = 0 + 18

Combine like terms: 0 + 18 = 18
0.25x2 = 18

Divide each side by '0.25'.
x2 = 72

Simplifying
x2 = 72

Take the square root of each side:
x = {-8.485281374, 8.485281374}