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Simplifying (9x2 + -1x + -4)(5x2 + 9x + -1) = 0 Reorder the terms: (-4 + -1x + 9x2)(5x2 + 9x + -1) = 0 Reorder the terms: (-4 + -1x + 9x2)(-1 + 9x + 5x2) = 0 Multiply (-4 + -1x + 9x2) * (-1 + 9x + 5x2) (-4(-1 + 9x + 5x2) + -1x * (-1 + 9x + 5x2) + 9x2 * (-1 + 9x + 5x2)) = 0 ((-1 * -4 + 9x * -4 + 5x2 * -4) + -1x * (-1 + 9x + 5x2) + 9x2 * (-1 + 9x + 5x2)) = 0 ((4 + -36x + -20x2) + -1x * (-1 + 9x + 5x2) + 9x2 * (-1 + 9x + 5x2)) = 0 (4 + -36x + -20x2 + (-1 * -1x + 9x * -1x + 5x2 * -1x) + 9x2 * (-1 + 9x + 5x2)) = 0 (4 + -36x + -20x2 + (1x + -9x2 + -5x3) + 9x2 * (-1 + 9x + 5x2)) = 0 (4 + -36x + -20x2 + 1x + -9x2 + -5x3 + (-1 * 9x2 + 9x * 9x2 + 5x2 * 9x2)) = 0 (4 + -36x + -20x2 + 1x + -9x2 + -5x3 + (-9x2 + 81x3 + 45x4)) = 0 Reorder the terms: (4 + -36x + 1x + -20x2 + -9x2 + -9x2 + -5x3 + 81x3 + 45x4) = 0 Combine like terms: -36x + 1x = -35x (4 + -35x + -20x2 + -9x2 + -9x2 + -5x3 + 81x3 + 45x4) = 0 Combine like terms: -20x2 + -9x2 = -29x2 (4 + -35x + -29x2 + -9x2 + -5x3 + 81x3 + 45x4) = 0 Combine like terms: -29x2 + -9x2 = -38x2 (4 + -35x + -38x2 + -5x3 + 81x3 + 45x4) = 0 Combine like terms: -5x3 + 81x3 = 76x3 (4 + -35x + -38x2 + 76x3 + 45x4) = 0 Solving 4 + -35x + -38x2 + 76x3 + 45x4 = 0 Solving for variable 'x'. The solution to this equation could not be determined.
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