(7a+7)(8a^2-5a-9)=

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Solution for (7a+7)(8a^2-5a-9)= equation:


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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