(9a-9)(9a^2+7a-1)=

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Solution for (9a-9)(9a^2+7a-1)= equation:


Simplifying
(9a + -9)(9a2 + 7a + -1) = 0

Reorder the terms:
(-9 + 9a)(9a2 + 7a + -1) = 0

Reorder the terms:
(-9 + 9a)(-1 + 7a + 9a2) = 0

Multiply (-9 + 9a) * (-1 + 7a + 9a2)
(-9(-1 + 7a + 9a2) + 9a * (-1 + 7a + 9a2)) = 0
((-1 * -9 + 7a * -9 + 9a2 * -9) + 9a * (-1 + 7a + 9a2)) = 0
((9 + -63a + -81a2) + 9a * (-1 + 7a + 9a2)) = 0
(9 + -63a + -81a2 + (-1 * 9a + 7a * 9a + 9a2 * 9a)) = 0
(9 + -63a + -81a2 + (-9a + 63a2 + 81a3)) = 0

Reorder the terms:
(9 + -63a + -9a + -81a2 + 63a2 + 81a3) = 0

Combine like terms: -63a + -9a = -72a
(9 + -72a + -81a2 + 63a2 + 81a3) = 0

Combine like terms: -81a2 + 63a2 = -18a2
(9 + -72a + -18a2 + 81a3) = 0

Solving
9 + -72a + -18a2 + 81a3 = 0

Solving for variable 'a'.

Factor out the Greatest Common Factor (GCF), '9'.
9(1 + -8a + -2a2 + 9a3) = 0

Ignore the factor 9.

Subproblem 1

Set the factor '(1 + -8a + -2a2 + 9a3)' equal to zero and attempt to solve: Simplifying 1 + -8a + -2a2 + 9a3 = 0 Solving 1 + -8a + -2a2 + 9a3 = 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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