SOLUTION: I am having problems figuring out 2 questions. The first one is factor the trinomial or state that it is prime: x^2+6x-7, I have been working on this and believe that it is prime

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: I am having problems figuring out 2 questions. The first one is factor the trinomial or state that it is prime: x^2+6x-7, I have been working on this and believe that it is prime      Log On


   

Question 863929: I am having problems figuring out 2 questions. The first one is factor the trinomial or state that it is prime:
x^2+6x-7, I have been working on this and believe that it is prime?
and the second one is: 2x-2/x * 5x^2/4x-4, I have been working on this and think it might be 5x/2?
Thank you
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
x^2+6x-7

x%5E2%2B7x-x-7

x%28x%2B7%29-1%28x%2B7%29

(x+7)(x-1)


%28%282x-2%29%2Fx%29%2A%285x%5E2%2F%284x-4%29%29

(2(x-1))/x)*(5x^2/(4(x-1))
=5x/2