16r^2-36=

Solution for 16r^2-36= equation:

Simplifying
16r2 + -36 = 0

Reorder the terms:
-36 + 16r2 = 0

Solving
-36 + 16r2 = 0

Solving for variable 'r'.

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

Add '36' to each side of the equation.
-36 + 36 + 16r2 = 0 + 36

Combine like terms: -36 + 36 = 0
0 + 16r2 = 0 + 36
16r2 = 0 + 36

Combine like terms: 0 + 36 = 36
16r2 = 36

Divide each side by '16'.
r2 = 2.25

Simplifying
r2 = 2.25

Take the square root of each side:
r = {-1.5, 1.5}