h^2-7-9=0

Solution for h^2-7-9=0 equation:

Simplifying
h2 + -7 + -9 = 0

Reorder the terms:
-7 + -9 + h2 = 0

Combine like terms: -7 + -9 = -16
-16 + h2 = 0

Solving
-16 + h2 = 0

Solving for variable 'h'.

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

Add '16' to each side of the equation.
-16 + 16 + h2 = 0 + 16

Combine like terms: -16 + 16 = 0
0 + h2 = 0 + 16
h2 = 0 + 16

Combine like terms: 0 + 16 = 16
h2 = 16

Simplifying
h2 = 16

Take the square root of each side:
h = {-4, 4}