-6y
-3xy-4x-2
-148a+445b
54x2+2
-2x-1
-xy-11x+9y
-178x-25y+1
79xy-2512x-12y
-2a+14
11a+16b-4c
2ab+15a-17b
10ab-15a+45b
-2x+2.5y
-8x-9y
-2x+27
a-1
-47x-y
-114y
11x3-13
41a24+524
11x6-136
4
84x3y4z6
20x3yz43
-56x5y7
-x4y442
24x4
-96x5y3
20m17n11
3a9b8c420
3x
-6a2
-5x3y
9a2
95m4
2ab23c
b32ac2
-96m2n5
2m2
103a2
-7m2n25