Answer :

To find: the term independent of x in the expansion of?

Formula Used:

A general term, T_{r+1} of binomial expansionis given by,

T_{r+1} ^{n}C_{r} x^{n-r} y^{r} where

^{n}C_{r}

Now, finding the general term of the expression, , we get

T_{r+1}^{9}C_{r}

T_{r+1}^{9}C_{r}

T_{r+1}^{9}C_{r}

For finding the term which is independent of x,

9-3r=0

r=3

Thus, the term which would be independent of x is T_{4}

Thus, the term independent of x in the expansion of is T_{4} i.e 4^{th} term

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