441=x^2

Solution for 441=x^2 equation:

Simplifying
441 = x2

Solving
441 = x2

Solving for variable 'x'.

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

Add '-1x2' to each side of the equation.
441 + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
441 + -1x2 = 0

Add '-441' to each side of the equation.
441 + -441 + -1x2 = 0 + -441

Combine like terms: 441 + -441 = 0
0 + -1x2 = 0 + -441
-1x2 = 0 + -441

Combine like terms: 0 + -441 = -441
-1x2 = -441

Divide each side by '-1'.
x2 = 441

Simplifying
x2 = 441

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