-12c+7
11c2-17
-1.3a
310x+12
4x+6
-3x2+9x
83x-1
29x2+32x
-2a+14
11a+2b-8
6a+5b+7
-3a+2b
3x-2
-16x+15
19x+14
4a-11b+31
-34x+32
-2x-2
7m3+83
31x6+176
-68a15+10615
11a12-b12
-16a4b3
3x2y
-192m5n5
a5b6c4
-18ab4c3
-p9q5r496
-189a9b3c5
-9m5n47
2a
-6a2
-2x2
-4m3n
12x
12y3x3
-24y2x
-96m2n5
-8x2y3z
m6n24
-4p3r3