3g+5h+4g-2h
1111111113
hf
2(1/3) / 1(1/5)
3x+5y-x+2y
6-9+8*3 |20
6c+4d-c-7d
4a+7b+5a-b
3ab-9ab+7ab
this number is a multiple of seven and two is a foctor of 28
(x+2)(x+3)(x+4)=120
