3x^2 + 17x + 10

5y^8 - 125
a^2 - 2ab - 15b^2
4c^2 - 12c + 9
p4 - 1
6y^2 - 54
x^2 + 10x + 21
a^2 - 10ab + 3b^2
5x^2 - 10x
x^2 + 12xy + 35y^2

Can someone help me with these

I will be happy to critique your work.

http://library.thinkquest.org/29292/quadratic/2factoring/practice.htm

Are these links to similar questions?

No, the link provided is for the website ThinkQuest, specifically the section on quadratic factoring practice. It is not a link to similar questions. If you have any specific questions or need help with any of the expressions listed, please let me know and I will be happy to assist you.