4x
-c2-6c
0.1x-1.2
76x2+x-56
-x+5
13x2-2x+2
-2x+2
-3a-14b
-2a+14
-5x+9y+4
2ab+15a-17b
-21x+15y
-12a+8b-16
332x-110y
13
3a-15
-3x-14
-x-12y
3a4+12
-11x72+41y72-3172
11x6-136
18a5-5b
84x3y4z6
-6m3n4
-168a5b3
-m6n72
-18ab4c3
-27m7n4
-p5q4r425
-25x10y63
-23m3
-2y2z3x
-8p2q7r83
9q8r2p
12x
2ab23c
-24y2x
-96m2n5
-94x
-y2z
6x2y2