u^2-7uv-18v^2=0

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Solution for u^2-7uv-18v^2=0 equation:


Simplifying
u2 + -7uv + -18v2 = 0

Reorder the terms:
-7uv + u2 + -18v2 = 0

Solving
-7uv + u2 + -18v2 = 0

Solving for variable 'u'.

Factor a trinomial.
(u + -9v)(u + 2v) = 0

Subproblem 1

Set the factor '(u + -9v)' equal to zero and attempt to solve: Simplifying u + -9v = 0 Solving u + -9v = 0 Move all terms containing u to the left, all other terms to the right. Add '9v' to each side of the equation. u + -9v + 9v = 0 + 9v Combine like terms: -9v + 9v = 0 u + 0 = 0 + 9v u = 0 + 9v Remove the zero: u = 9v Simplifying u = 9v

Subproblem 2

Set the factor '(u + 2v)' equal to zero and attempt to solve: Simplifying u + 2v = 0 Solving u + 2v = 0 Move all terms containing u to the left, all other terms to the right. Add '-2v' to each side of the equation. u + 2v + -2v = 0 + -2v Combine like terms: 2v + -2v = 0 u + 0 = 0 + -2v u = 0 + -2v Remove the zero: u = -2v Simplifying u = -2v

Solution

u = {9v, -2v}

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