225=n^2

Solution for 225=n^2 equation:

Simplifying
225 = n2

Solving
225 = n2

Solving for variable 'n'.

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

Add '-1n2' to each side of the equation.
225 + -1n2 = n2 + -1n2

Combine like terms: n2 + -1n2 = 0
225 + -1n2 = 0

Add '-225' to each side of the equation.
225 + -225 + -1n2 = 0 + -225

Combine like terms: 225 + -225 = 0
0 + -1n2 = 0 + -225
-1n2 = 0 + -225

Combine like terms: 0 + -225 = -225
-1n2 = -225

Divide each side by '-1'.
n2 = 225

Simplifying
n2 = 225

Take the square root of each side:
n = {-15, 15}