Factor the binomial completely.
-$r ^ { 20 } - s ^ { 2 }$
A) $\left( \mathrm { r } ^ { 10 } - \mathrm { s } \right) ^ { 2 }$
B) $\left( \mathrm { r } ^ { 10 } + \mathrm { s } \right) ^ { 2 }$
C) $\left( r ^ { 10 } + s \right) \left( r ^ { 10 } - s \right)$
D)prime

Question

Quizplus · Accepted Answer

This binomial is a difference of squares, where $a = r^{10}$ and $b = s$, so it factors into $(a + b)(a - b)$, which is $(r^{10} + s)(r^{10} - s)$.

Factor the Binomial Completely r20−s2r ^ { 20 } - s ^ { 2 }r20−s2

Factor the Binomial Completely $r ^ { 20 } - s ^ { 2 }$