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algebra

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simplify the following radical expression:
3 sqrt () -216x^2/x^2
a) sqrt() -6x
b)-6
c)-6 sqrt()x
d) 6 sqrt()-x

  • algebra -

    If I have read your data correctly (I'm not sure what "()" means), and there are no typos:

    3 * √(-216x^2/x^2)

    x^2's cancel each other out.

    3 * √(-216)

    This does not match any of your choices.

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