625=r^2

Solution for 625=r^2 equation:

Simplifying
625 = r2

Solving
625 = r2

Solving for variable 'r'.

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

Add '-1r2' to each side of the equation.
625 + -1r2 = r2 + -1r2

Combine like terms: r2 + -1r2 = 0
625 + -1r2 = 0

Add '-625' to each side of the equation.
625 + -625 + -1r2 = 0 + -625

Combine like terms: 625 + -625 = 0
0 + -1r2 = 0 + -625
-1r2 = 0 + -625

Combine like terms: 0 + -625 = -625
-1r2 = -625

Divide each side by '-1'.
r2 = 625

Simplifying
r2 = 625

Take the square root of each side:
r = {-25, 25}