6r^2-72=0

Solution for 6r^2-72=0 equation:

Simplifying
6r2 + -72 = 0

Reorder the terms:
-72 + 6r2 = 0

Solving
-72 + 6r2 = 0

Solving for variable 'r'.

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

Add '72' to each side of the equation.
-72 + 72 + 6r2 = 0 + 72

Combine like terms: -72 + 72 = 0
0 + 6r2 = 0 + 72
6r2 = 0 + 72

Combine like terms: 0 + 72 = 72
6r2 = 72

Divide each side by '6'.
r2 = 12

Simplifying
r2 = 12

Take the square root of each side:
r = {-3.464101615, 3.464101615}