SOLUTION: Simplify. Please show all of your work. -w + 12w2 – 15w3 + 3(12w + 3w2 – 5w3)

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Question 477576: Simplify. Please show all of your work.
-w + 12w2 – 15w3 + 3(12w + 3w2 – 5w3)
Answer by ruru7723(1) About Me  (Show Source):
You can put this solution on YOUR website!
-w+12w2-15w3+3(12w+3w2-5w3)=
-w+12w2-15w3+36w+9w2-15w3=
35w+21w2