Answer
$21x^2y^5$
Work Step by Step
The $r+1$ th term in the binomial expansion of $(x+y)^n$ is:
$\binom{n}{r}x^{n-r}y^r$
Here $n=7$:
$r+1=6$
$r=5$
The indicated term is:
$\binom{7}{5}x^{7-5}y^5=21x^2y^5$
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