factor each trinominals

14m2+11mr-15r2

1 answer

Why are you changing names on each post? If you want good help, you wouldn't do that.

factors of 14
14,1
7,2
factors of 15
15,1
3,5

what adds to 11 using the above numbers?

after a bit of mental reasoning..
7*3-2*5..

That is the thinking part. Put it together.