SOLUTION: 9b^3 + 7b - 5*(9 b^3 - 2b) =

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Question 622564: 9b^3 + 7b - 5*(9 b^3 - 2b) =
Answer by lenny460(1073) About Me  (Show Source):
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Simplify:
9b^3 + 7b - 5(9b^3 - 2b)
-5 * 9b^3 = -45b^3
-5 * -2b = 10b
Therefore:
9b^3 + 7b - 45b^3 + 10b
Combine like terms:
9b^3 - 45b^3 = -36b^3
7b + 10b = 17b
The Answer:
17b - 36b^3


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