# another question about limits at infinity

• October 22nd 2012, 06:11 PM
kingsolomonsgrave
another question about limits at infinity
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in the third step, why does the x^4 change to x^2?, distributing divides the power in half?
• October 22nd 2012, 06:51 PM
Prove It
Re: another question about limits at infinity
Quote:

Originally Posted by kingsolomonsgrave
Attachment 25351Attachment 25351

in the third step, why does the x^4 change to x^2?, distributing divides the power in half?

It doesn't, it's been changed to \displaystyle \begin{align*} x^2 \cdot x^2 \end{align*}. It does this so you can divide each term in each of the factors by \displaystyle \begin{align*} x^2 \end{align*}.