4r^2-144=

Solution for 4r^2-144= equation:

Simplifying
4r2 + -144 = 0

Reorder the terms:
-144 + 4r2 = 0

Solving
-144 + 4r2 = 0

Solving for variable 'r'.

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

Add '144' to each side of the equation.
-144 + 144 + 4r2 = 0 + 144

Combine like terms: -144 + 144 = 0
0 + 4r2 = 0 + 144
4r2 = 0 + 144

Combine like terms: 0 + 144 = 144
4r2 = 144

Divide each side by '4'.
r2 = 36

Simplifying
r2 = 36

Take the square root of each side:
r = {-6, 6}