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Simplifying X2 + 2xy + -9y2 = 0 Solving X2 + 2xy + -9y2 = 0 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '-2xy' to each side of the equation. X2 + 2xy + -2xy + -9y2 = 0 + -2xy Combine like terms: 2xy + -2xy = 0 X2 + 0 + -9y2 = 0 + -2xy X2 + -9y2 = 0 + -2xy Remove the zero: X2 + -9y2 = -2xy Add '9y2' to each side of the equation. X2 + -9y2 + 9y2 = -2xy + 9y2 Combine like terms: -9y2 + 9y2 = 0 X2 + 0 = -2xy + 9y2 X2 = -2xy + 9y2 Simplifying X2 = -2xy + 9y2 Reorder the terms: X2 + 2xy + -9y2 = -2xy + 2xy + 9y2 + -9y2 Combine like terms: -2xy + 2xy = 0 X2 + 2xy + -9y2 = 0 + 9y2 + -9y2 X2 + 2xy + -9y2 = 9y2 + -9y2 Combine like terms: 9y2 + -9y2 = 0 X2 + 2xy + -9y2 = 0 The solution to this equation could not be determined.
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