-7x+22
2x2+5x
0.1x-1.2
2a-835
-x+5
3a2+12a+18
920ab-310a-b
79xy-2512x-12y
7x-1
10x2-9x+5
-2x+6y+3
48a-36b
-4a+28b+0.8
165ab-3a+3518b
-54x-8
3a-15
11x
-6x+23y
11x3-13
11x6-5y6
27x4-214
18a5-5b
84x3y4z6
15a2b2c
72p4q3r5
-m6n72
112m5n3
200x5
2a4b4c47
3x5y4
2a
-6x2
-8p2q7r83
9q8r2p
95m4
6ab
3x47
3200b
-7q2r29p
-y2z
3a4bc