3r^2-4=0

Solution for 3r^2-4=0 equation:

Simplifying
3r2 + -4 = 0

Reorder the terms:
-4 + 3r2 = 0

Solving
-4 + 3r2 = 0

Solving for variable 'r'.

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

Add '4' to each side of the equation.
-4 + 4 + 3r2 = 0 + 4

Combine like terms: -4 + 4 = 0
0 + 3r2 = 0 + 4
3r2 = 0 + 4

Combine like terms: 0 + 4 = 4
3r2 = 4

Divide each side by '3'.
r2 = 1.333333333

Simplifying
r2 = 1.333333333

Take the square root of each side:
r = {-1.154700538, 1.154700538}