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Simplifying x2 + -18xy + 81y2 = 0 Reorder the terms: -18xy + x2 + 81y2 = 0 Solving -18xy + x2 + 81y2 = 0 Solving for variable 'x'. Factor a trinomial. (x + -9y)(x + -9y) = 0Subproblem 1
Set the factor '(x + -9y)' equal to zero and attempt to solve: Simplifying x + -9y = 0 Solving x + -9y = 0 Move all terms containing x to the left, all other terms to the right. Add '9y' to each side of the equation. x + -9y + 9y = 0 + 9y Combine like terms: -9y + 9y = 0 x + 0 = 0 + 9y x = 0 + 9y Remove the zero: x = 9y Simplifying x = 9ySubproblem 2
Set the factor '(x + -9y)' equal to zero and attempt to solve: Simplifying x + -9y = 0 Solving x + -9y = 0 Move all terms containing x to the left, all other terms to the right. Add '9y' to each side of the equation. x + -9y + 9y = 0 + 9y Combine like terms: -9y + 9y = 0 x + 0 = 0 + 9y x = 0 + 9y Remove the zero: x = 9y Simplifying x = 9ySolution
x = {9y, 9y}
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