Question

Expand the binomial.
(5 − y)4

Answer 1

(5 − y)^4

Answer 2

(5-y)^2(5-y)^2 =(25-10y+y^2)(25-10y+y^2)

Answer 3

- do you need to continue ?

Answer 4

yes

Answer 5

and can you make it ?

Answer 6

sorry im back no i dont know how

Answer 7

This the binomial Theorem:
\[(x+y)^n=\sum_{k=0}^{n} \left(\begin{matrix}n \\ k\end{matrix}\right) x^{n-k}y^k\]