Question
Find the indicated term of each binomial expansion. See Examples 8 and 9 .$$(x+y)^{9} ; 7 \text { th term }$$
Step 1
We use the formula for the rth term of a binomial expansion, which is given by $\binom{n}{r}x^{n-r}y^{r}$, where $\binom{n}{r}$ is the binomial coefficient, n is the power of the binomial, and r is the term number minus 1. Show more…
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Key Concepts
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Find the indicated term of each binomial expansion. See Examples 8 and 9 . $$ (x+y)^{8} ; 3 \mathrm{rd} \text { term } $$
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