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Simplifying (7a + 7)(8a2 + -5a + -9) = 0 Reorder the terms: (7 + 7a)(8a2 + -5a + -9) = 0 Reorder the terms: (7 + 7a)(-9 + -5a + 8a2) = 0 Multiply (7 + 7a) * (-9 + -5a + 8a2) (7(-9 + -5a + 8a2) + 7a * (-9 + -5a + 8a2)) = 0 ((-9 * 7 + -5a * 7 + 8a2 * 7) + 7a * (-9 + -5a + 8a2)) = 0 ((-63 + -35a + 56a2) + 7a * (-9 + -5a + 8a2)) = 0 (-63 + -35a + 56a2 + (-9 * 7a + -5a * 7a + 8a2 * 7a)) = 0 (-63 + -35a + 56a2 + (-63a + -35a2 + 56a3)) = 0 Reorder the terms: (-63 + -35a + -63a + 56a2 + -35a2 + 56a3) = 0 Combine like terms: -35a + -63a = -98a (-63 + -98a + 56a2 + -35a2 + 56a3) = 0 Combine like terms: 56a2 + -35a2 = 21a2 (-63 + -98a + 21a2 + 56a3) = 0 Solving -63 + -98a + 21a2 + 56a3 = 0 Solving for variable 'a'. Factor out the Greatest Common Factor (GCF), '7'. 7(-9 + -14a + 3a2 + 8a3) = 0 Ignore the factor 7.Subproblem 1
Set the factor '(-9 + -14a + 3a2 + 8a3)' equal to zero and attempt to solve: Simplifying -9 + -14a + 3a2 + 8a3 = 0 Solving -9 + -14a + 3a2 + 8a3 = 0 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.
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