-6y
-a2-8a+1
0.7x2-0.4x+y
310x+12
-x+5
3y2-20y
16x+16
103x+12
-2a-11b
-5x+9y+4
2ab+15a-17b
10ab-15a+45b
-7ab-212a+283
52x2+34y-43
11x+5
2a-26b-39c
-3x-14
13x+107
3x4+54
11x6-5y6
11a20+47b20
11a12-b12
-16a4b3
20x3yz43
-168a5b3
2x5y4z3
-18ab4c3
-p9q5r496
-p5q4r425
-9m5n47
2a
-6a2
9ab
-28a33b2
-43a3
8n4m
-125a
81x42y
2m2
2pq3
-4b