express 5�ã72 in simplest radical form

I did this:


Is this right?

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  1. I guess maybe we are doing:
    5 sqrt(72)
    5 sqrt(36) sqrt(2)
    30 sqrt(2)

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  2. Oh, it didn't come out right

    The question was express (5)(sqrt)(72) in simplest radical form

    I did:

    Am I on the right track?

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  3. Yes, that is fine.

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