Respuesta :

sqdancefan

Answer:

  [tex]-4r^3-3r^2+2rs-5[/tex]

Step-by-step explanation:

The terms have powers of r that are 2, 0, 1, and 3 (in the order shown here). You want to rearrange those terms so the powers have order 3, 2, 1, 0. The above answer shows that arrangement.