MATH GENIUS NEEDED!!!!!!!!!

I have tried submitting this multiple times and I REALLY need help. PLEASE!!!!

I am having trouble with completely factoring these:

1.3x2 + 17x + 10

2.5y8 - 125

3.a2 - 2ab - 15b2

4.4c2 - 12c + 9

5.p4 - 1

6.6y2 - 54

7.x2 + 10x + 21

8.a2 - 10ab + 3b2

9.5x2 - 10x

10.x2 + 12xy + 35y



And please, if you're not going to help me... Don't answer. Because I report rude people.


Thank you!

selected items only. the rest do your work.
2. 5(y4+5)(y4-5)
3. (a-5b)(a+3b)
7. (x+3)(x+7)
9. 5x(x-2)
10. (x+7y)(x+5y)

do your own work