Question

How do you solve `8r-r^2>=15`?

Answer 1

`rin[3,5]`

Explanation:

`8r-r^2-15>=0`

`-r^2+8r-15>=0`

`-r+5r+3r-15>=0`

`-r*(r-5)+3(r-5)>=0`

`(-r+3)*(r-5)>=0`