Question

How would you factor 5r(squared)-27r-56 ?

Answer 1

(5r - 8)*(r +7)

Answer 2

yep, wait flip the signs

Answer 3

my mistake :o

Answer 4

(5r +8)*(r-7)

Answer 5

I though that the -7 and 8 should add to give me -27, in order for it to be a correct answer? o:

Answer 6

the 5 messes that up :)

Answer 7

you see that you have - 56 at the end of equation, so you know that factors of 7 and 8, with one of them being negative when multiplied will give you -56

Answer 8

Ahhhh yes yes I see , I have never been good at these :p I finally get it though :D
I have a big test tomorrow, a final, so I must try to get all questions answered tonight .