Algebra

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

Rangcr897 Jun 2, 2024

NotThatSmart · Answer 1 · 2024-06-02T01:17:10

Well, I don't reccomend it, but I used a calculator because I'm too lazy.

$729y^{12}+2916y^{11}-2430y^{10}-19980y^9+135y^8+59976y^7+6364y^6-99960y^5+375y^4+92500y^3-18750y^2-37500y+15625$

As you can see, the coefficient for y^4 is 375.

Thanks! :)