SOLUTION: I was doing fine on my homework in till I came to a couple of questions that I could not figure out, if you could help me I would really appreciate it. Here is the problem 6/x^2-

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: I was doing fine on my homework in till I came to a couple of questions that I could not figure out, if you could help me I would really appreciate it. Here is the problem 6/x^2-      Log On


   

Question 131902: I was doing fine on my homework in till I came to a couple of questions that I could not figure out, if you could help me I would really appreciate it.
Here is the problem 6/x^2-4x-5 + 1/x+1
I think that if I could find the LCD for the denominators then I could figure out the rest of the problem. I do know that the answers has to be one of these...
A) 7/(x-5)(x+1)
B) x+1/x-5
C) x+1
D) 1/x-5
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!
6%2F%28x%5E2-4x-5%29+%2B+1%2F%28x%2B1%29

The first step is to factor the denominator in the first fraction.

-5%2A1=-5 and -5%2B1=-4, so:

x%5E2-4x-5=%28x-5%29%28x%2B1%29

And Ah ha! The two denominators have a common factor of x%2B1, so:



That would be D. Final Answer, Regis