72r^2-50=

Solution for 72r^2-50= equation:

Simplifying
72r2 + -50 = 0

Reorder the terms:
-50 + 72r2 = 0

Solving
-50 + 72r2 = 0

Solving for variable 'r'.

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

Add '50' to each side of the equation.
-50 + 50 + 72r2 = 0 + 50

Combine like terms: -50 + 50 = 0
0 + 72r2 = 0 + 50
72r2 = 0 + 50

Combine like terms: 0 + 50 = 50
72r2 = 50

Divide each side by '72'.
r2 = 0.6944444444

Simplifying
r2 = 0.6944444444

Take the square root of each side:
r = {-0.833333333, 0.833333333}