factoring trinomials, differences of squares, etc

[freemangirl1]

My instructer is posting a test Thursday. The following are some examples of what is going to be on the test. Any help will be greatly appreciated!

1) Factor this trinomial: x^2 - 11x - 60

2) Factor 2 a^3 - 52 a^2 b + 96 a b^2

3) Find positive values of k which make x^2 + x - k factorable.

4) Factor 14 x^2 - 20 x + 6 completely.

5) Factor -35 s^2 - 10s + 8 completely.

6) Factor the binomial 25 x^2 - 81 y^2

7) Determine whether x^2 - 24 x + 48 is a perfect square. If it is, factor it.

8) Factor the trinomial 16 x^2 + 40 x y + 25 y^2

9) Factor the expression a^2 (b - c) - 16 b^2 (b - c)

10) Factor x^3 - 4 x^2 + 2 x - 8 by grouping the first and last two terms.

11) Factor completely: 3 a^3 + 3 a b^2 + 2 a^2 b + 2 b^3

12) Use the A-C test to determine if x^2 + 2x - 15 can be factored.

13) Use the A-C test to determine if x^2 - 3x + 7 can be factored.

14) Rewrite the middle terms of 12 w^2 + 19 w + 4 as the sum of two terms, and then factor.

15) Factor 4 z^3 - 18 z^2 - 10 z

I am so failing and not understanding so maybe someone can give me a little help, thanks!

 

[stapel]

The material you've posted comprises at least a week of classroom time. I'm afraid we simply can't replicate that within this environment, certainly not in a short forum posting, and more certainly not before your test.

Since you aren't able even to get started on any of these, I would follow up my comments to your other thread by strongly recommending that you hire a good tutor right now, and start working with him on a daily basis to try to get caught up, and then stay caught up.

My best wishes to you in your studies.

Eliz.