Question

binomials???

Answer 1

The answer is easy to see.

If raised to the nth power, there will be n number of components.
Since there power is 5, you need 5 components in the solution.

Answer 2

well i know i have to use pasacals triangle but i don't know how to do it with out them both being variables?

Answer 3

?
Just replace the variable with a number.

Answer 4

\[\left( x+a \right)^n=nc0 x^n+nc1x ^{n-1}a+nc2 x ^{n-2}a^2+...+ncn a^n\]
nc0=1,ncn=1
\[nc1=\frac{ n }{ 1 }=n,nc2=\frac{ n \left( n-1 \right) }{ 2*1},nc3=\frac{ n \left( n-1 \right) \left( n-2 \right)}{ 3*2*1 }\]
here a=-3,n=5