-17a
6x2-2x+9
-4.2a2+4.8a+1.1
-234a-17
7x-8
10x-7y
-2x+2
-7144ab+221a+3b
7x-1
-5x+9y+4
5a+5b-c
9y+8
-4a+28b+0.8
52x2+34y-43
-5x+3
-3x-16y-39
3x-14
x+23y
7m3+83
-6x35-3835
-68a15+10615
18a5-5b
33x2y
20x3yz43
72p4q3r5
-x4y442
-250x4y2
-p9q5r496
20m17n11
3x5y4
-4y3x
-6x2
-8p2q7r83
9a2
95m4
12y3x3
m24n
c29a4b4
-q2r23
-4x3
-4p3r3