-2x+3y-2
9xy-30x-15y+1
-1.3a
-3a+1710b-79
-2x-1
-3x2+9x
x2+2x+35
-120y2-112y
-2a-11b
11a+16b-4c
-2x+6y+3
48a-36b
-2x+2.5y
-10a-27b+60
18x+38
17x2-7x-82
-34x+32
x+23y
3a4+12
-6x35-3835
4a21-821
x-2
-35x4y5
4abc25
72x3
-m6n72
-18ab4c3
-27m7n4
2a4b4c47
3x7y8
2a
-6x2
9ab
9q8r2p
-10ab3
6ab
-649p3q2
81x42y
2a29b
-5m4n28
6x2y2