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Simplifying (9t2 + -1t + -4)(7t2 + 9t + -9) = 0 Reorder the terms: (-4 + -1t + 9t2)(7t2 + 9t + -9) = 0 Reorder the terms: (-4 + -1t + 9t2)(-9 + 9t + 7t2) = 0 Multiply (-4 + -1t + 9t2) * (-9 + 9t + 7t2) (-4(-9 + 9t + 7t2) + -1t * (-9 + 9t + 7t2) + 9t2 * (-9 + 9t + 7t2)) = 0 ((-9 * -4 + 9t * -4 + 7t2 * -4) + -1t * (-9 + 9t + 7t2) + 9t2 * (-9 + 9t + 7t2)) = 0 ((36 + -36t + -28t2) + -1t * (-9 + 9t + 7t2) + 9t2 * (-9 + 9t + 7t2)) = 0 (36 + -36t + -28t2 + (-9 * -1t + 9t * -1t + 7t2 * -1t) + 9t2 * (-9 + 9t + 7t2)) = 0 (36 + -36t + -28t2 + (9t + -9t2 + -7t3) + 9t2 * (-9 + 9t + 7t2)) = 0 (36 + -36t + -28t2 + 9t + -9t2 + -7t3 + (-9 * 9t2 + 9t * 9t2 + 7t2 * 9t2)) = 0 (36 + -36t + -28t2 + 9t + -9t2 + -7t3 + (-81t2 + 81t3 + 63t4)) = 0 Reorder the terms: (36 + -36t + 9t + -28t2 + -9t2 + -81t2 + -7t3 + 81t3 + 63t4) = 0 Combine like terms: -36t + 9t = -27t (36 + -27t + -28t2 + -9t2 + -81t2 + -7t3 + 81t3 + 63t4) = 0 Combine like terms: -28t2 + -9t2 = -37t2 (36 + -27t + -37t2 + -81t2 + -7t3 + 81t3 + 63t4) = 0 Combine like terms: -37t2 + -81t2 = -118t2 (36 + -27t + -118t2 + -7t3 + 81t3 + 63t4) = 0 Combine like terms: -7t3 + 81t3 = 74t3 (36 + -27t + -118t2 + 74t3 + 63t4) = 0 Solving 36 + -27t + -118t2 + 74t3 + 63t4 = 0 Solving for variable 't'. The solution to this equation could not be determined.
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