Question

PLEASE HELP!!!

-Simplify the rational expression, if possible. Identify any excluded values.
7r²
----
21r³

Answer 1

7r^-1/3r^3

Explanation:

7r^2/21r^3

21r^3 ➡ 7r^3 × 3r^3

7r^2/7r^3×3r^3 ➡ 7r^2 - 7r^3/3r^3

➡7r^-1/3r^3