2x-16
-12x2-2x
2.8a-1.4b
-234a-17
6x-2y+9
-28a2+22a
-178x-25y+1
103x+12
-2a-11b
3a-3c
13a-5b-7c
-3a+2b
-12a+8b-16
332x-110y
22x
-36x+9
-34x+4
7x-1
11x3-13
31x6+176
9x35+71y35
23x6-76
14a2b2c4
4abc25
96x2y2z2
-x4y442
12x3y3
2a5b2c3
36x3y6
a9b11c784
-23m3
-6a2
9ab
-3x16
3x8y2
8n4m
-24y2x
-72qp
-a2b64c3
103a2
2xy2z