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Simplifying (9x2 + -7x + 8)(8x2 + 9x + -7) = 0 Reorder the terms: (8 + -7x + 9x2)(8x2 + 9x + -7) = 0 Reorder the terms: (8 + -7x + 9x2)(-7 + 9x + 8x2) = 0 Multiply (8 + -7x + 9x2) * (-7 + 9x + 8x2) (8(-7 + 9x + 8x2) + -7x * (-7 + 9x + 8x2) + 9x2 * (-7 + 9x + 8x2)) = 0 ((-7 * 8 + 9x * 8 + 8x2 * 8) + -7x * (-7 + 9x + 8x2) + 9x2 * (-7 + 9x + 8x2)) = 0 ((-56 + 72x + 64x2) + -7x * (-7 + 9x + 8x2) + 9x2 * (-7 + 9x + 8x2)) = 0 (-56 + 72x + 64x2 + (-7 * -7x + 9x * -7x + 8x2 * -7x) + 9x2 * (-7 + 9x + 8x2)) = 0 (-56 + 72x + 64x2 + (49x + -63x2 + -56x3) + 9x2 * (-7 + 9x + 8x2)) = 0 (-56 + 72x + 64x2 + 49x + -63x2 + -56x3 + (-7 * 9x2 + 9x * 9x2 + 8x2 * 9x2)) = 0 (-56 + 72x + 64x2 + 49x + -63x2 + -56x3 + (-63x2 + 81x3 + 72x4)) = 0 Reorder the terms: (-56 + 72x + 49x + 64x2 + -63x2 + -63x2 + -56x3 + 81x3 + 72x4) = 0 Combine like terms: 72x + 49x = 121x (-56 + 121x + 64x2 + -63x2 + -63x2 + -56x3 + 81x3 + 72x4) = 0 Combine like terms: 64x2 + -63x2 = 1x2 (-56 + 121x + 1x2 + -63x2 + -56x3 + 81x3 + 72x4) = 0 Combine like terms: 1x2 + -63x2 = -62x2 (-56 + 121x + -62x2 + -56x3 + 81x3 + 72x4) = 0 Combine like terms: -56x3 + 81x3 = 25x3 (-56 + 121x + -62x2 + 25x3 + 72x4) = 0 Solving -56 + 121x + -62x2 + 25x3 + 72x4 = 0 Solving for variable 'x'. The solution to this equation could not be determined.
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