x-4y+2
-a2+a
-3.5a2+0.8a
-3712c2+16c
x+4y-7
3y2-20y
x2+2x+35
-18x3+542x2+116x
-2a-11b
-5x+9y+4
2ab+15a-17b
10ab-15a+45b
-4a+28b+0.8
-32a+2b-32
33x+8
-3x-42y+2
10x-233y
-3415a-313b
3a4+12
41a24+524
-68a15+10615
18a5-5b
-35x4y5
4abc25
96x2y2z2
-5a2b4c4
24x4
200x5
2a4b4c47
-25x10y63
3x
4ab
-2x2
9q8r2p
3x8y2
2ab23c
b32ac2
-96m2n5
-b26a2
a2bc25
2xy2z