SOLUTION: Find the following product (a - 9)(a^2 + 9a + 8) a)a^3 + 89a +72 b)a^3 + 18a^2 + 73a + 72 c)a^3 + 73a + 72 d)18a^2 + 73a

SOLUTION: Find the following product (a - 9)(a^2 + 9a + 8) a)a^3 + 89a +72 b)a^3 + 18a^2 + 73a + 72 c)a^3 + 73a + 72 d)18a^2 + 73a - 72

Question 93056: Find the following product
(a - 9)(a^2 + 9a + 8)
a)a^3 + 89a +72 b)a^3 + 18a^2 + 73a + 72 c)a^3 + 73a + 72 d)18a^2 + 73a - 72
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
(a - 9)(a^2 + 9a + 8)
=a(a^2+9a+8)-9(a^2+9a+8)
= a^3 + 9a^2 + 8a -9a^2 - 81a -72
= a^3 -73a -72
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Cheers,
Stan H.
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