441=h^2

Solution for 441=h^2 equation:

Simplifying
441 = h2

Solving
441 = h2

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.
441 + -1h2 = h2 + -1h2

Combine like terms: h2 + -1h2 = 0
441 + -1h2 = 0

Add '-441' to each side of the equation.
441 + -441 + -1h2 = 0 + -441

Combine like terms: 441 + -441 = 0
0 + -1h2 = 0 + -441
-1h2 = 0 + -441

Combine like terms: 0 + -441 = -441
-1h2 = -441

Divide each side by '-1'.
h2 = 441

Simplifying
h2 = 441

Take the square root of each side:
h = {-21, 21}