-2x
2x2+5x
0.7x2-0.4x+y
-124a2-12
-2x2+3x+4
-15x3+6x2+11x
16x+215
-18x3+542x2+116x
-2a-11b
-x2+12x-2
13ab+2a+5b
-3a+2b
3x-2
165ab-3a+3518b
22x
2x-75
-112x+512y
-x-12y
11x3-13
11x6-5y6
11a20+47b20
18a5-5b
-35x4y5
s4t324
-168a5b3
3a4b2c32
24x4
-27m7n4
32x6y7
a9b11c784
2m23n3
-6a2
-5x3y
-3x16
12x
12y3x3
m24n
81x42y
10x
-c2ab
2xy2z