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Simplifying (x + y)(x + y) + -1(x + y) + -12 = 0 Multiply (x + y) * (x + y) (x(x + y) + y(x + y)) + -1(x + y) + -12 = 0 ((x * x + y * x) + y(x + y)) + -1(x + y) + -12 = 0 Reorder the terms: ((xy + x2) + y(x + y)) + -1(x + y) + -12 = 0 ((xy + x2) + y(x + y)) + -1(x + y) + -12 = 0 (xy + x2 + (x * y + y * y)) + -1(x + y) + -12 = 0 (xy + x2 + (xy + y2)) + -1(x + y) + -12 = 0 Reorder the terms: (xy + xy + x2 + y2) + -1(x + y) + -12 = 0 Combine like terms: xy + xy = 2xy (2xy + x2 + y2) + -1(x + y) + -12 = 0 2xy + x2 + y2 + (x * -1 + y * -1) + -12 = 0 2xy + x2 + y2 + (-1x + -1y) + -12 = 0 Reorder the terms: -12 + -1x + 2xy + x2 + -1y + y2 = 0 Solving -12 + -1x + 2xy + x2 + -1y + y2 = 0 Solving for variable 'x'. The solution to this equation could not be determined.
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