4x-6
-6c2-c
-3.5a2+0.8a
-53x2+13x
5x2+4x+3
2ab-2a+12b
-2x+2
-120y2-112y
-6x+9y
11a+2b-8
5a+5b-c
32x+40
-2x+2.5y
-16x+15
11x-24
a-1
-2a-b
-198x+94
x2+11y2
a6-b6
9x35+71y35
x-2
-16a4b3
-6m3n4
-192m5n5
-x4y442
-250x4y2
-p9q5r496
36x3y6
a9b11c784
2m23n3
4ab
-5x3y
-8y23x2
-10ab3
6ab
m24n
c29a4b4
-b26a2
-y2z
6x2y2