-17a
-17a2-2ab+14b2
-1.3a
-18y2-56y
x+4y-7
11x2-17xy-9y2+11
-x-3
-1320a2+1715a
-2a-11b
-5x+9y+4
2ab+15a-17b
10ab-15a+45b
4x-6y
332x-110y
31x-2
8a-2b-10c
-2x-6y
-12a+b
3a4+12
31x6+176
11a20+47b20
2x3-2y3
-16a4b3
-6m3n4
-192m5n5
a5b6c4
112m5n3
-p9q5r496
20m17n11
-25x10y63
2m23n3
-6a2
-9q2pr6
9q8r2p
3x8y2
8n4m
-24y2x
81x42y
-a2b64c3
-5p3q22
3a4bc