-23c
a2+9
920y
-18y2-56y
-2x2+3x+4
2ab-2a+12b
16x+215
79xy-2512x-12y
-2a-11b
-5x+9y+4
13ab+2a+5b
-2x2-4xy+5y2
-4a+28b+0.8
18a+115b-27
40x+3
a+6
73x-20y
-x+109
3a4+12
a6-b6
27x4-214
2x3-2y3
14a2b2c4
-6m3n4
72p4q3r5
-m6n72
112m5n3
2a5b2c3
20m17n11
a9b11c784
2a
4ab
-9q2pr6
-8y23x2
3x8y2
8n4m
-125a
3200b
-94x
a2bc25
3a4bc