How do I rationalize the denominator in this problem?

3√ _8__ so here is the problem and I need to figure it out and I am stuck.
9x

Updates:
the 3 is cubed
Never mind I figured it out you have to multiply by the conjugate and make it the opposite sign I figured it out.

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  • @hypno-trip seems to be the math whizz kid from what I see

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  • Mhmm, I'm not very good with numbers, I can only count to H.

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  • 8 is 2^3 and that's pretty much the only thing you can get out of the root, the numerator in the root becomes 1 and the cuberoot goes down to the denominator, I guess; so it's 2 / cuberoot (9x)

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