Factor by Grouping.please show me the steps!!!!!!!

Question

1.) y2+11y+30

2.) x2+4x-5

3.) a2-a-56

Answer 1

what multiples to the last term, and add to the second?

1) 6,5
2) 5,-1
3) -8,7 Notice when signs are different, you place the sign of the middle term on the larger

So, on 3, for instance...the answer is..
(x-8)(x+7)
you do the others, I will check if you need it.