3u^2-64=0

Solution for 3u^2-64=0 equation:

Simplifying
3u2 + -64 = 0

Reorder the terms:
-64 + 3u2 = 0

Solving
-64 + 3u2 = 0

Solving for variable 'u'.

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

Add '64' to each side of the equation.
-64 + 64 + 3u2 = 0 + 64

Combine like terms: -64 + 64 = 0
0 + 3u2 = 0 + 64
3u2 = 0 + 64

Combine like terms: 0 + 64 = 64
3u2 = 64

Divide each side by '3'.
u2 = 21.33333333

Simplifying
u2 = 21.33333333

Take the square root of each side:
u = {-4.618802153, 4.618802153}