math

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I am not sure how to do these.

1. Simplify 4√6/√30 by rationalizing the denominator. Show your work.

2. Simplify (2√5 + 3√7)^2 Show your work. Justify each step.

  • math -

    4 sqrt 6
    ----------
    sqrt (6*5)

    = 4/sqrt 5

    * sqrt 5/sqrt 5

    = (4/5) sqrt 5

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