I think they are equivalent (A) but u should get a second opinion.
Answer:
D and I
Step-by-step explanation:
Answer:
Identity property
Identity property says that any number multiplied by one is itself
One way is to just expand it by using binomial theorem
or to use pascal's triangle
ok so
to find the nth term of a binomial, (a-b). where the binomial is to the r power you do
n-1=k
rCk times

and rCk=

so
4th term
4-1=3
6 is exponent
6C3

=

=

=

the 4th term is
To find the length I know you have to do 164 divided by 6