24 and 42, I got this by multiplying 5 and 2 then doing the same thing to 7 and adding the sums. I used this method to find the perimeter of 10 and 12 as well.
Answer:
Step-by-step explanation:

I’m not sure what they are asking for. One way is -6(2x -4 + 3y)
That’s really the only way to factor it