120=2h^2*.5

Solution for 120=2h^2*.5 equation:

Simplifying
120 = 2h2 * 0.5

Reorder the terms for easier multiplication:
120 = 2 * 0.5h2

Multiply 2 * 0.5
120 = 1h2

Solving
120 = 1h2

Solving for variable 'h'.

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

Add '-1h2' to each side of the equation.
120 + -1h2 = 1h2 + -1h2

Combine like terms: 1h2 + -1h2 = 0
120 + -1h2 = 0

Add '-120' to each side of the equation.
120 + -120 + -1h2 = 0 + -120

Combine like terms: 120 + -120 = 0
0 + -1h2 = 0 + -120
-1h2 = 0 + -120

Combine like terms: 0 + -120 = -120
-1h2 = -120

Divide each side by '-1'.
h2 = 120

Simplifying
h2 = 120

Take the square root of each side:
h = {-10.95445115, 10.95445115}