SOLUTION: simplify: (3x^3 - 1 + 9x) + (3 + 3x)

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Question 151960: simplify:
(3x^3 - 1 + 9x) + (3 + 3x)

Answer by orca(409) About Me  (Show Source):
You can put this solution on YOUR website!
First remove the parentheses, and then combine like terms.
%283x%5E3+-+1+%2B+9x%29+%2B+%283+%2B+3x%29
=3x%5E3-1%2B9x%2B3%2B3x
=3x%5E3%2B9x%2B3x-1%2B3
=3x%5E3%2B12x%2B2