Posted by Nate on .
Find the limit
lim
x>2
(2x^2 +1)/(x^2 + 6x 4)

Calculus 
Reiny,
step 1 in any limit question is to actually substitute the approach value into your expression.
If you get a real number, that is your answer, you are done!
lim (2x^2 + 1)/(x^2 + 6x  4) as x > 2
= 9/12
= 3/4
Voila!!! all done.