-2x
-8a2+2ab-2b2
-x+0.8y+3.6
2a-835
4x+6
7x-7
76x+47y-2
79xy-2512x-12y
-6x+9y
3a-3c
6a+5b+7
12x+18y-30
-2x+2.5y
332x-110y
-5x-34
-3x-16y-39
-47x-y
-x-12y
3x4+54
-11x72+41y72-3172
9x35+71y35
18a5-5b
-16a4b3
3x2y
-56x5y7
-x4y442
12x3y3
-96x5y3
2a4b4c47
a9b11c784
-4y3x
4ab
-9q2pr6
-4m3n
95m4
3c320b4
m24n
-96m2n5
-b26a2
-y2z
6x2y2