-6y
8y2-6y
-0.1x2-0.4x
12a2+524a-13
x+4y-7
13x2-2x+2
16x+16
-18x3+542x2+116x
-2a+14
3a-3c
2ab+15a-17b
30x2-35x
-12a+8b-16
18a+115b-27
31x-2
6x-25y
83x-152
-12a+b
3x4+54
-6x35-3835
27x4-214
18a5-5b
-35x4y5
4abc25
72p4q3r5
2x5y4z3
-250x4y2
-x7y8z948
-p5q4r425
-25x10y63
-23m3
-6x2
-9q2pr6
9q8r2p
-10ab3
6ab
-125a
81x42y
12xy
a2bc25
2xy2z