u^2-3u*3u-9=

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


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

Reorder the terms for easier multiplication:
u2 + -3 * 3u * u + -9 = 0

Multiply -3 * 3
u2 + -9u * u + -9 = 0

Multiply u * u
u2 + -9u2 + -9 = 0

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

Combine like terms: u2 + -9u2 = -8u2
-9 + -8u2 = 0

Solving
-9 + -8u2 = 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 + -8u2 = 0 + 9

Combine like terms: -9 + 9 = 0
0 + -8u2 = 0 + 9
-8u2 = 0 + 9

Combine like terms: 0 + 9 = 9
-8u2 = 9

Divide each side by '-8'.
u2 = -1.125

Simplifying
u2 = -1.125

Reorder the terms:
1.125 + u2 = -1.125 + 1.125

Combine like terms: -1.125 + 1.125 = 0.000
1.125 + u2 = 0.000

The solution to this equation could not be determined.

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