144=2r^2

Solution for 144=2r^2 equation:

Simplifying
144 = 2r2

Solving
144 = 2r2

Solving for variable 'r'.

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

Add '-2r2' to each side of the equation.
144 + -2r2 = 2r2 + -2r2

Combine like terms: 2r2 + -2r2 = 0
144 + -2r2 = 0

Add '-144' to each side of the equation.
144 + -144 + -2r2 = 0 + -144

Combine like terms: 144 + -144 = 0
0 + -2r2 = 0 + -144
-2r2 = 0 + -144

Combine like terms: 0 + -144 = -144
-2r2 = -144

Divide each side by '-2'.
r2 = 72

Simplifying
r2 = 72

Take the square root of each side:
r = {-8.485281374, 8.485281374}