u^2-9w^2=

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Solution for u^2-9w^2= equation: 


Simplifying
u2 + -9w2 = 0

Solving
u2 + -9w2 = 0

Solving for variable 'u'.

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

Add '9w2' to each side of the equation.
u2 + -9w2 + 9w2 = 0 + 9w2

Combine like terms: -9w2 + 9w2 = 0
u2 + 0 = 0 + 9w2
u2 = 0 + 9w2
Remove the zero:
u2 = 9w2

Simplifying
u2 = 9w2

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

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