Question
Use binomial theorem to expand 
.
The correct answer is: For the expansion of an expression , we would have n+1 terms. This is something you need to keep in mind.
ANSWER:
Hint:
The binomial expansion is 
, here 
.
We are asked to use binomial theorem to expand .
Step 1 of 2:
Here, the value of n=4. So, the combination permutation we would use is .
We would have 4+1=5 terms in the expansion of the expression .
Step 2 of 2:
Substitute the values of in the binomial expansion:
Thus, the expansion is:
Note:
For the expansion of an expression 
, we would have n+1 terms. This is something you need to keep in mind.
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For the expansion of an expression (x + y)n , we would have n+1 terms. This is something you need to keep in mind.
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How is obtained from 
How is obtained from
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Use Pascal triangle to expand
The answer cam also be found by expanding the formula of 5Cr .
Use Pascal triangle to expand
The answer cam also be found by expanding the formula of 5Cr .
