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Garvice · Answer 1 · 2017-11-14T02:52:26+0000

Since all of the variables are y^3, all we have to do is the addition and subtraction of the whole numbers...

2y^3 - 3y^3 + 3y^3 - 4y^3 =

-2y^3

***Notice that the -3y^3 and 3y^3 just cancel out so all you have to do is the
2-4 = -2

Piece of cake :)

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