7x-6y
11c2-17
-3512c
13a2-a
-10x-2y+2
7x-7
-2x+2
-18x3+542x2+116x
7x-1
11a+2b-8
6a+5b+7
30x2-35x
25x2-252x+10
2x-3
-6x+19
a+6
-2a-b
7x-1
3x4+54
41a24+524
9x35+71y35
23x6-76
33x2y
15a2b2c
96x2y2z2
3a4b2c32
-72a3b4c5
-x7y8z948
2a4b4c47
-9m5n47
-23m3
-2y2z3x
-5x3y
-8y23x2
3x8y2
8n4m
-125a
81x42y
-7q2r29p
-xy2
6x2y2