What is -7 y to the second power + 2y to the third power minus 7y + 4y to the third power + 6 y to the second power + 4 y to the second power + 3 y

-7y^2 +2y^3 -7y +4y^3 +6y^2 +4y^2 +3y. Ok.

First, combine -7y^2 with 6y^2 and with 4y^2. =

Second, combine 2y^3 with 4y^3. =

Last, combine the terms -7y and 3y. =

Combining meaning add.

Then, add all the sums of the like terms to get the answer. Answer is = 6y^3 +3y^2 -4y

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