Im asked to evaluate:(adsbygoogle = window.adsbygoogle || []).push({});

[(1/x+4)-1/4]/x

Lim -> 0

Substitution, factoring and conjugate multiplication dont work

The question tells me to multipy the top and bottam by the lcd of the little fractions namely 4(x+4)

--here im a little confused, did all the book do is take both denominators (x+4) and 4 and make them the LCD together?

So like if my question was for example like this,

[(1/2x+3)-1/4]/x

My LCD would be 4(2x+3), am i wrong?

Thanks

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Evaluating a limit

**Physics Forums | Science Articles, Homework Help, Discussion**