2a-b
2y+2
0.7x2-0.4x+y
-56x+23y+12
-x+5
2ab-2a+12b
-x-3
-7144ab+221a+3b
-2a+14
-5x+9y+4
13ab+2a+5b
35a-28b+112
-1.2a-3b+24c
58x2-52y2
4x-18
-4a-81b
132x-163
2a+5b
3a4+12
11x6-5y6
4a21-821
23x6-76
48a2bc
-6m3n4
-168a5b3
-m6n72
12x3y3
-x7y8z948
2a4b4c47
-9m5n47
3a2
-2y2z3x
-9q2pr6
-28a33b2
12x
4y3x2z
3x47
-72qp
2a29b
103a2
3a4bc