-6y
11c2-17
-3512c
2a-835
x+4y-7
10x-7y
76x+47y-2
10x2+78x+13
-2a-11b
-5x+9y+4
6a+5b+7
10ab-15a+45b
x-7
52x2+34y-43
-2x-11
32a+23b
132x-163
4x-4y
-22a5-35
11x6-5y6
4a21-821
11a12-b12
-16a4b3
s4t324
96x2y2z2
-5a2b4c4
-72a3b4c5
2a5b2c3
-p5q4r425
3x5y4
3a2
-3x22
-9q2pr6
9q8r2p
95m4
4y3x2z
m24n
c29a4b4
-13b
2pq3
2xy2z