4x-6
-5x2+2x-7
0.1x-1.2
-45a2-2a
6x-4
-2a+3b
-x-3
79xy-2512x-12y
-2a+14
11a+16b-4c
5a+5b-c
12x+18y-30
3x-2
-16x+15
-6x+19
-3x-42y+2
-476x-298
-18x+4
7m3+83
31x6+176
11x6-136
2x3-2y3
33x2y
4abc25
-56x5y7
-5a2b4c4
24x4
2a5b2c3
2a4b4c47
3x7y8
2a
4ab
-5x3y
-8y23x2
95m4
4y3x2z
-24y2x
225c4a4b6
-13b
103a2
6x2y2