Question

Help

Answer 1

FOIL it, see what you get

Answer 2

Whoops i made an mistake on the previous one (2r+−5)(r+10)
(2r)(r)+(2r)(10)+(−5)(r)+(−5)(10)
\( \color{brown}{2r^2+20r−5r−50} \)
\( \color{eneter color name}{2r^2+15r−50} \)

Answer 3

so 2r^2 +15r-50 is the answer

Answer 4

Yes, this is what i got

Answer 5

ok can you help me with more