What is the positive difference of the solutions of \(\dfrac{r^2-3r-17}{r+4}=2r+7\) ?

Help, I'm stuck on this problem.

Thanks!

Guest Jun 12, 2021

#1**+2 **

Multiply both sides of the equation by r+4 to get

r^2 -3r-17 = 2r^2 +15r + 28 simplify

r^2 +18r + 45 = 0

(r+15)(r+3) = 0 You should be able to finish......

ElectricPavlov Jun 12, 2021