Answer:
4) -(m+12)(m-12)
5) (y+12)^2
6) (x+5)(x-5)(x^2-25)
7) (a+9)(-y+7)
8) Prime
9) Prime
Hope this helps!
Answer: 2y+6
Step-by-step explanation:
17.67766953
=17.7 (to 3 s.f.)
Either side would have been improved by a railway so they could get more ammo in and get food in and also get the sick and wonded out to get medical attention
