SOLUTION: N^2-6N-7= 2N(N-7) Enter your answers in increasing order.

Algebra ->  Finance -> SOLUTION: N^2-6N-7= 2N(N-7) Enter your answers in increasing order.      Log On


   

Question 1014682: N^2-6N-7= 2N(N-7)
Enter your answers in increasing order.
Answer by skippo(9) About Me  (Show Source):
You can put this solution on YOUR website!
N%5E2-6N+-7 = 2N%28N-7%29
N%5E2-6N-7 = 2N%5E2-14N
collect like terms and equate to zero
N%5E2-2N%5E2-6N%2B14N-7+=+0
-N%5E2%2B8N-7+=+0
multiply through by -1
N%5E2-8N%2B7+=+0
N%5E2-N-7N%2B7+=+0
N%28N-1%29-7%28N-1%29+=+0
%28N-1%29%28N-7%29+=+0
N-1+=+0++or++N-7+=+0
N+=+1++or++N+=+7
N+=+1++or++7