Use binomial theorem to expand expression.

The correct answer is: Thus, the expansion is:

ANSWER:
Hint:
The binomial expansion is  , here  .
We are asked to find the binomial expansion of  using binomial theorem.
Step 1 of 2:
The given expression is  . Here, the value of n=7. Thus, there are 7+1=8 terms in the expansion.
Step 2 of 2:
Substitute the values in the expansion to get the terms of the expansion. Thus, we have:


Thus, the expansion is:

.Note:
The answer can be found using the Pascal’s triangle. For an expression  , we would have n+ 1 term.