-2x+3y-2
-12x2-2x
-52a
-3712c2+16c
-x+5
-xy-11x+9y
-2x+2
-3a-14b
-6x+9y
11a+16b-4c
6a+5b+7
-3a+2b
3x-2
58x2-52y2
31x-2
-4a-81b
6a-2b
4x-5y
x2+11y2
a6-b6
11x6-136
23x6-76
-35x4y5
s4t324
-56x5y7
-x4y442
-72a3b4c5
-x7y8z948
32x6y7
3a9b8c420
-23m3
-6a2
8a3b2
9a2
12x
6ab
-125a
3200b
2a29b
-4x3
-7m2n25