SOLUTION: simplify: (4x^3+x^2-3) - (-9x^3+5x^2-6)

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Question 152629: simplify:
(4x^3+x^2-3) - (-9x^3+5x^2-6)
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
The key is to group like terms and perform operations on them.
Group the x%5E2 terms, the x terms and the constants.
Use the distributive properties and watch the signs.


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%284x%5E3%2Bx%5E2-3%29+-+%28-9x%5E3%2B5x%5E2-6%29=13x%5E3-4x%5E2%2B3