SOLUTION: I need help understand how to begin with f(x) = x squared and f(x) = X+1 I took a summer course and it's so fast I'm not getting it. Final is Tuesday. HELP!!!!

Algebra ->  Rational-functions -> SOLUTION: I need help understand how to begin with f(x) = x squared and f(x) = X+1 I took a summer course and it's so fast I'm not getting it. Final is Tuesday. HELP!!!!      Log On


   

Question 91821: I need help understand how to begin with f(x) = x squared and f(x) = X+1
I took a summer course and it's so fast I'm not getting it. Final is Tuesday. HELP!!!!
Answer by Nate(3500) About Me  (Show Source):
You can put this solution on YOUR website!
f%28x%29+=+x%5E2 and f%28x%29+=+x+%2B+1
f%28x%29+=+f%28x%29
x%5E2+=+x+%2B+1
x%5E2+-+x+-+1+=+0
Solve anyway you know of:
x%5E2+-+x+=+1
%28x+-+1%2F2%29%5E2+=+5%2F4
x+=+%281+%2B-+sqrt%285%29%29%2F2