Answer:
r^2+2r-24
Explanation:
Use FOIL (Front, Outside, Inside, last)
(r+6)(r-4)
F: r*r=r^2
O: -4*r=-4r
I: 6*r=6r
L: 6*-4=-24
r^2-4r+6r-24
Combine like terms
Hope this helps! :)
