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Simplifying (x + -3y)(x + 3y) = 10 Multiply (x + -3y) * (x + 3y) (x(x + 3y) + -3y * (x + 3y)) = 10 ((x * x + 3y * x) + -3y * (x + 3y)) = 10 Reorder the terms: ((3xy + x2) + -3y * (x + 3y)) = 10 ((3xy + x2) + -3y * (x + 3y)) = 10 (3xy + x2 + (x * -3y + 3y * -3y)) = 10 (3xy + x2 + (-3xy + -9y2)) = 10 Reorder the terms: (3xy + -3xy + x2 + -9y2) = 10 Combine like terms: 3xy + -3xy = 0 (0 + x2 + -9y2) = 10 (x2 + -9y2) = 10 Solving x2 + -9y2 = 10 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '9y2' to each side of the equation. x2 + -9y2 + 9y2 = 10 + 9y2 Combine like terms: -9y2 + 9y2 = 0 x2 + 0 = 10 + 9y2 x2 = 10 + 9y2 Simplifying x2 = 10 + 9y2 Reorder the terms: -10 + x2 + -9y2 = 10 + 9y2 + -10 + -9y2 Reorder the terms: -10 + x2 + -9y2 = 10 + -10 + 9y2 + -9y2 Combine like terms: 10 + -10 = 0 -10 + x2 + -9y2 = 0 + 9y2 + -9y2 -10 + x2 + -9y2 = 9y2 + -9y2 Combine like terms: 9y2 + -9y2 = 0 -10 + x2 + -9y2 = 0 The solution to this equation could not be determined.
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