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

 Dec 14, 2023
 #1
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Simplify  as  ( 3y - 11)^4

 

Expansion

 

C(4,0)*(3y)^4 =   1* 81 * y^4  =   81 y^4

 

cool cool cool

 Dec 14, 2023

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