15a
11c2-17
2.8a-1.4b
-45a2-2a
6x-4
-3x2+9x
16x+16
-120y2-112y
-6x+9y
10x2-9x+5
5a+5b-c
-21x+15y
25x2-252x+10
52x2+34y-43
11x-24
4a-11b+31
-9x+11
-32a+3b
3a4+12
-6x35-3835
4a21-821
23x6-76
84x3y4z6
-6m3n4
-168a5b3
-x4y442
-250x4y2
-x7y8z948
32x6y7
-9m5n47
-4y3x
-6a2
9ab
-3x16
-10ab3
12y3x3
-649p3q2
-96m2n5
-b26a2
2pq3
3a4bc