Limit 2 help please

[jmsic]

PROBLEM: lim as x approaches 3 from the negative side
x[supr56akyt]2[/supr56akyt]/(x[supr56akyt]2[/supr56akyt] +1) ALL OF THIS + square root of (9-x[supr56akyt]2[/supr56akyt])

i factored out the square root of (9-x[supr56akyt]2[/supr56akyt]) into the square root of (3-x)(3+x) and multiplied the top and bottom by (X[supr56akyt]2[/supr56akyt]+1) and then i dont know what to do after that =.=

 

[stapel]

PROBLEM: lim as x approaches 3 from the negative side
x[sup:2lx8ennz]2[/sup:2lx8ennz]/(x[sup:2lx8ennz]2[/sup:2lx8ennz] +1) ALL OF THIS + square root of (9-x[sup:2lx8ennz]2[/sup:2lx8ennz])

Does the above mean the following?

. . . . .\(\displaystyle \frac{x^2}{x^2\, +\, 1}\, +\, \sqrt{9\, -\, x^2}\)

If so, what did you multiply by \(\displaystyle x^2\, +\, 1\), and why? If not, what did you mean?

Thank you! :wink: