how to simplify 7^3*7^-2/7^5
"how to simplify 7^3*7^-2/7^5"
Use the fact that a^b*a^c = a^(b+c) and a^b/a^c = a^(b-c)
\(\frac{7^3\times7^{-2}}{7^5}\rightarrow\frac{7^1}{7^5}\rightarrow7^{-4}\rightarrow \frac{1}{7^4}\)
.
