x-4y+2
9xy-30x-15y+1
1.5a-0.9
-43y2+1715y-112
6x-4
-15x3+6x2+11x
920ab-310a-b
136a2-98a+263
-2a+14
11a+2b-8
13a-5b-7c
32x+40
-1.2a-3b+24c
2x-3
18x+38
2x-23y+59
-112x+512y
7x-1
-22a5-35
41a24+524
11a20+47b20
x-2
48a2bc
-6m3n4
-56x5y7
-x4y442
-18ab4c3
2a5b2c3
20m17n11
-25x10y63
-4y3x
-6a2
-5x3y
-28a33b2
3x8y2
2ab23c
b32ac2
3200b
-b26a2
-4x3
2xy2z