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Simplifying (9a + -7b)(4a2 + -2ab + 5b2) = 0 Reorder the terms: (9a + -7b)(-2ab + 4a2 + 5b2) = 0 Multiply (9a + -7b) * (-2ab + 4a2 + 5b2) (9a * (-2ab + 4a2 + 5b2) + -7b * (-2ab + 4a2 + 5b2)) = 0 ((-2ab * 9a + 4a2 * 9a + 5b2 * 9a) + -7b * (-2ab + 4a2 + 5b2)) = 0 Reorder the terms: ((45ab2 + -18a2b + 36a3) + -7b * (-2ab + 4a2 + 5b2)) = 0 ((45ab2 + -18a2b + 36a3) + -7b * (-2ab + 4a2 + 5b2)) = 0 (45ab2 + -18a2b + 36a3 + (-2ab * -7b + 4a2 * -7b + 5b2 * -7b)) = 0 (45ab2 + -18a2b + 36a3 + (14ab2 + -28a2b + -35b3)) = 0 Reorder the terms: (45ab2 + 14ab2 + -18a2b + -28a2b + 36a3 + -35b3) = 0 Combine like terms: 45ab2 + 14ab2 = 59ab2 (59ab2 + -18a2b + -28a2b + 36a3 + -35b3) = 0 Combine like terms: -18a2b + -28a2b = -46a2b (59ab2 + -46a2b + 36a3 + -35b3) = 0 Solving 59ab2 + -46a2b + 36a3 + -35b3 = 0 Solving for variable 'a'. The solution to this equation could not be determined.
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