Sign up ×
Mathematics Stack Exchange is a question and answer site for people studying math at any level and professionals in related fields. It's 100% free, no registration required.

I'd be thankful if someone could explain to me how to get the result with minus sign in front in this "rationalize the denominator" task: $\dfrac{\sqrt[3]2-\sqrt[3]3}{\sqrt[3]4-\sqrt[3]6+\sqrt[3]9}$ Wolfram Alpha.

I get the solution with the numerator numbers switched (therefore the minus sign)...

Ehm, as soon as I posted this question, I realized that I'm actually right, I solved it correct, I thought I didn't get the minus. I guess it's late, just delete this...

share|cite|improve this question
Have you tried anything yet? – homegrown Feb 23 '14 at 0:19
if you want to delete you should select the delete link underneath the post. This will work unless you get upvotes / answers. – TooTone Feb 23 '14 at 0:26

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.