Factor and write as a product of 2 factors:
5. 5*4 + 7*4 = (5+7)4
6. x*9 + 4*9
7. r*7 + m*7
8. (x+4) + (x+4) + (x+4)
i will give brainly if you answer question (you could do all of them or not all of them, your choice)