-7y-5
11c2-17
43x-178y
118x2+34x
-2x-1
2ab-2a+12b
920ab-310a-b
136a2-98a+263
-6x+9y
10x2-9x+5
6a+5b+7
-21x+15y
25x2-252x+10
12x-10
8x+22
-9x+31y
-2a-6310b
-3415a-313b
3a4+12
-11x72+41y72-3172
27x4-214
x-2
84x3y4z6
20x3yz43
72x3
2x5y4z3
112m5n3
-96x5y3
2a4b4c47
-9m5n47
3x
-6x2
-8p2q7r83
9q8r2p
-10ab3
12y3x3
3x47
3200b
-13b
103a2
6x2y2