64=u^2

Solution for 64=u^2 equation:

Simplifying
64 = u2

Solving
64 = u2

Solving for variable 'u'.

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

Add '-1u2' to each side of the equation.
64 + -1u2 = u2 + -1u2

Combine like terms: u2 + -1u2 = 0
64 + -1u2 = 0

Add '-64' to each side of the equation.
64 + -64 + -1u2 = 0 + -64

Combine like terms: 64 + -64 = 0
0 + -1u2 = 0 + -64
-1u2 = 0 + -64

Combine like terms: 0 + -64 = -64
-1u2 = -64

Divide each side by '-1'.
u2 = 64

Simplifying
u2 = 64

Take the square root of each side:
u = {-8, 8}