HELP!!!! WILL MARK!!!!
(2r - 5)(r+10)=2r^2 +20r -5r - 50=2r^2 +15r - 50answer:2r^2 +15r - 50 (first choice)(k-3)(k-1)=k^2 - 3k - k + 3=k^2 - 4k +3answer k^2 - 4k +3 (second choice)
