u^2-3u+3u-9=

Solution for u^2-3u+3u-9= equation:

Simplifying
u2 + -3u + 3u + -9 = 0

Reorder the terms:
-9 + -3u + 3u + u2 = 0

Combine like terms: -3u + 3u = 0
-9 + 0 + u2 = 0
-9 + u2 = 0

Solving
-9 + u2 = 0

Solving for variable 'u'.

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

Add '9' to each side of the equation.
-9 + 9 + u2 = 0 + 9

Combine like terms: -9 + 9 = 0
0 + u2 = 0 + 9
u2 = 0 + 9

Combine like terms: 0 + 9 = 9
u2 = 9

Simplifying
u2 = 9

Take the square root of each side:
u = {-3, 3}