SOLUTION: simplify: (4x^3+x^2-3)-(-9x^3+5x^2-5) thank you for your help

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Question 152991: simplify:
(4x^3+x^2-3)-(-9x^3+5x^2-5)

thank you for your help
Answer by orca(409) About Me  (Show Source):
You can put this solution on YOUR website!
First remove the parentheses.
Next combine like terms.
%284x%5E3%2Bx%5E2-3%29-%28-9x%5E3%2B5x%5E2-5%29
=4x%5E3+%2B+x%5E2-3%2B9x%5E3-5x%5E2%2B5
=4x%5E3%2B9x%5E3%2Bx%5E2-5x%5E2-3%2B5
=13x%5E3-4x%5E2%2B2