-7y-5
-c2-6c
1.5a-0.9
1712x-1112
x+4y-7
-2a+3b
83x-1
-1320a2+1715a
-2a+14
10x2-9x+5
13a-5b-7c
5ab-12a+2b
-4a+28b+0.8
103a-52b+1415c
x+1
8a-2b-10c
-2a-b
7x-1
11x3-13
-6x35-3835
4a21-821
2x3-2y3
84x3y4z6
15a2b2c
96x2y2z2
2x5y4z3
-18ab4c3
-96x5y3
-189a9b3c5
a9b11c784
3a2
-6x2
8a3b2
-4m3n
3x8y2
4y3x2z
3x47
-72qp
-94x
xy4
-7m2n25