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Simplifying ((2x2 + x + -1)(9x2 + -9x + 2)) = 0 Reorder the terms: ((-1 + x + 2x2)(9x2 + -9x + 2)) = 0 Reorder the terms: ((-1 + x + 2x2)(2 + -9x + 9x2)) = 0 Multiply (-1 + x + 2x2) * (2 + -9x + 9x2) ((-1(2 + -9x + 9x2) + x(2 + -9x + 9x2) + 2x2 * (2 + -9x + 9x2))) = 0 (((2 * -1 + -9x * -1 + 9x2 * -1) + x(2 + -9x + 9x2) + 2x2 * (2 + -9x + 9x2))) = 0 (((-2 + 9x + -9x2) + x(2 + -9x + 9x2) + 2x2 * (2 + -9x + 9x2))) = 0 ((-2 + 9x + -9x2 + (2 * x + -9x * x + 9x2 * x) + 2x2 * (2 + -9x + 9x2))) = 0 ((-2 + 9x + -9x2 + (2x + -9x2 + 9x3) + 2x2 * (2 + -9x + 9x2))) = 0 ((-2 + 9x + -9x2 + 2x + -9x2 + 9x3 + (2 * 2x2 + -9x * 2x2 + 9x2 * 2x2))) = 0 ((-2 + 9x + -9x2 + 2x + -9x2 + 9x3 + (4x2 + -18x3 + 18x4))) = 0 Reorder the terms: ((-2 + 9x + 2x + -9x2 + -9x2 + 4x2 + 9x3 + -18x3 + 18x4)) = 0 Combine like terms: 9x + 2x = 11x ((-2 + 11x + -9x2 + -9x2 + 4x2 + 9x3 + -18x3 + 18x4)) = 0 Combine like terms: -9x2 + -9x2 = -18x2 ((-2 + 11x + -18x2 + 4x2 + 9x3 + -18x3 + 18x4)) = 0 Combine like terms: -18x2 + 4x2 = -14x2 ((-2 + 11x + -14x2 + 9x3 + -18x3 + 18x4)) = 0 Combine like terms: 9x3 + -18x3 = -9x3 ((-2 + 11x + -14x2 + -9x3 + 18x4)) = 0 (-2 + 11x + -14x2 + -9x3 + 18x4) = 0 Remove parenthesis around (-2 + 11x + -14x2 + -9x3 + 18x4) -2 + 11x + -14x2 + -9x3 + 18x4 = 0 Solving -2 + 11x + -14x2 + -9x3 + 18x4 = 0 Solving for variable 'x'. The solution to this equation could not be determined.
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