Thursday, May 9, 2013

simplify (x^2-9x+20)/(x-4)


%0D%0A%28x%5E2-9x%2B20%29%2F%28x-4%29%0D%0A 


Since the numerator can be factored


%0D%0A%28%28x-4%29%28x-5%29%29%2F%28x-4%29%0D%0A


We can cancel any common factors
%0D%0Ax-5%0D%0A


obviously the original expression will still not be defined when x=4

:)
Posted by at
Labels: , ,

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)