#1**0 **

*Find the coefficient of y^4 in the expansion of (2y-5+3y^2)^6. *

That's way too much multiplying to try to do it manually.

Luckily, we have been provided a handy tool to use, at

**https://www.symbolab.com/solver/expand-calculator**

You'll find that it's **375** but go ahead and see for yourself.

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Bosco Jun 21, 2023