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GiggleSquid
rationalize the denominator. http://www.mathway.com/math_image.aspx?p=SMB02FSMB03-5xSMB02ESMB034SMB02eSMB03SMB10SMB02RSMB038x+10SMB02rSMB03SMB02fSMB03?p=67?p=42
\[ \frac{5 x^4 \sqrt{8 x+1}}{\sqrt{8 x+1} \sqrt{8 x+1}}=-\frac{5 x^4 \sqrt{8 x+1}}{8 x+1} \]
How. Just hwo do you do it so quickly? ;)
wow, put a lot of effort into that, thanks
\[ -\frac{5 x^4 \sqrt{8 x+1}}{\sqrt{8 x+1} \sqrt{8 x+1}}=-\frac{5 x^4 \sqrt{8 x+1}}{8 x+1} \] I forgot a minus sign.