4x-6
6x2-2x+9
-3512c
-53x2+13x
-15x-9
2ab-2a+12b
76x+47y-2
136a2-98a+263
7x-1
11a+2b-8
13a-5b-7c
-21x+15y
-12a+8b-16
2x-3
40x+3
-10x2-38
11x
-145x-229
-22a5-35
31x6+176
27x4-214
x-2
48a2bc
15a2b2c
72p4q3r5
a5b6c4
-250x4y2
-27m7n4
2a4b4c47
-9m5n47
2a
-6x2
9ab
-8y23x2
-10ab3
6ab
-125a
-96m2n5
-a2b64c3
-5m4n28
-4b