169u^2-225=0

Solution for 169u^2-225=0 equation:

Simplifying
169u2 + -225 = 0

Reorder the terms:
-225 + 169u2 = 0

Solving
-225 + 169u2 = 0

Solving for variable 'u'.

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

Add '225' to each side of the equation.
-225 + 225 + 169u2 = 0 + 225

Combine like terms: -225 + 225 = 0
0 + 169u2 = 0 + 225
169u2 = 0 + 225

Combine like terms: 0 + 225 = 225
169u2 = 225

Divide each side by '169'.
u2 = 1.331360947

Simplifying
u2 = 1.331360947

Take the square root of each side:
u = {-1.153846154, 1.153846154}