-22a+35
-a2+a
2.8a-1.4b
1712x-1112
6x-4
-3x2+9x
16x+215
79xy-2512x-12y
-2a-11b
11a+16b-4c
2ab+15a-17b
30x2-35x
5x2-9x
52x2+34y-43
-54x-8
-29x-70
-112x+512y
-6x+23y
-22a5-35
-6x35-3835
4a21-821
23x6-76
84x3y4z6
4abc25
-56x5y7
3a4b2c32
-18ab4c3
-96x5y3
32x6y7
3x7y8
3x
-6a2
-5x3y
-8y23x2
-43a3
4y3x2z
3x47
c29a4b4
-7q2r29p
-xy2
6x2y2