will someone help me with a lot of binomial therom questions?

Question

anonymous · Answer

where are your qs

anonymous · Answer

Expand the binomial. 
(2 − y)5

anonymous · Answer

distributive property. multiply the term outside the bracket by each term inside the bracket

anonymous · Answer

10-5y is answer?

anonymous · Answer

no  	Expand the binomial. 
(2 − y)^5
my bad

anonymous · Answer

ok

anonymous · Answer

humm ok

anonymous · Answer

The Binomial Theorem says that the coefficients of the terms of $$(a+b)^{n}$$ follow the pattern

1
1 1
1 2 1
1 3 3 1
1 4 6 4 1

and so on.  where each row is built by starting and ending with 1 and each number in between is the sum of the number above it and the one to he left of that number.

So for you,$$(a+b)^{5}=a^{5}b^{0}+5a^{4}b^{1}+10a^{3}b^{2}+10a^{2}b^{3}+5a^{1}b^{4}+a^{0}b^{5}$$$$=a^5+5a^{4}b+10a^{3}b^{2}+10a^{2}b^{3}+5ab^{4}+b^{5}$$
a=2, b=-y...plug in and simplify