To find: 16^th term in the expansion of

Formula used: (i)

(ii) T_r+1 = ⁿC_r a^n-r b^r

For 16^th term, r+1=16

⇒ r = 15

In,

16^th term = T₁₅₊₁

⇒ -136x
Ans) -136x