18h^2-72=0

Solution for 18h^2-72=0 equation:

Simplifying
18h2 + -72 = 0

Reorder the terms:
-72 + 18h2 = 0

Solving
-72 + 18h2 = 0

Solving for variable 'h'.

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

Add '72' to each side of the equation.
-72 + 72 + 18h2 = 0 + 72

Combine like terms: -72 + 72 = 0
0 + 18h2 = 0 + 72
18h2 = 0 + 72

Combine like terms: 0 + 72 = 72
18h2 = 72

Divide each side by '18'.
h2 = 4

Simplifying
h2 = 4

Take the square root of each side:
h = {-2, 2}