1.ax+by+ay+bx
2.x^3+1
3.x^2+x^3
4.x^2+x^3-2
5.x^2-6x+8
6.x^2-12x+35
7.(x^3-1)+(x-1)(6x+11)
8.x^4-1
9.x^4+4
10.b^2+ab+ac+bc
11.x^3+y^3+z^3-3xyz
12.x^6+8x^3+9
13.x^2-100x+99
14.x^2-x-y^2-y
15.7x^2-19x-6
16.8x^2-6x-9
17.x+1)(x+2)-12
18.x^2+(p+q)x+pq
19.3x^3-6x^2+3
20.a^2(x－2a)^2－a(x－2a)^2
21.25m^2－10mn＋n^2
22.x^2-3x-28
23.y^4+2y^3-3y^2
24.(x－1)^2*(3x－2)＋(2－3x)
25.(x－2)^2－x＋2
26.x^2-12x-28
27.12a^2*b(x－y)－4ab(y－x)
28.a^2＋5a＋6
29.x^11-2x^10+x^9
30.x^2+x
31.x^3+x
32.x^4+x
33.100x^2+30xy+2y^2
34.6y^2-16y+8
35.6-7a-5a^2
36.3x^2-17x+10
37.6a^2-11ab+3b^2
38.2m^3+3m^2-5m
39.(x+y)^2-2(x+y)-3
40.a^2-b^2+2ab-c^2
41.m^2+2mn+n^2-1
42.x^2-4y^2+4yz-z^2
43.9x^2-4y^2-z^2+4yz
44.-25+a^2+9b^2-6ab
45.2x^2-100x-102
46.x^2*y^2-7xy+10
47.x^2-x-2
48.-x^2*y+6xy-8y
49.x^2-9y^2-x+3y
50.x^2-7x-8
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