2x-16
-a2+a
0.8a2+1.5a-b
118x2+34x
-10x-2y+2
-2a+3b
-x-3
136a2-98a+263
-2a+14
-5x+9y+4
13a-5b-7c
35a-28b+112
x-7
-32a+2b-32
8x+22
-59a+5b+30c
-2a-6310b
13x+107
3a4+12
a6-b6
-68a15+10615
2x3-2y3
84x3y4z6
4abc25
72x3
a5b6c4
112m5n3
200x5
32x6y7
a9b11c784
-23m3
-6x2
-2x2
-8y23x2
12x
2ab23c
3x47
225c4a4b6
-b26a2
xy4
3a4bc