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March 27, 2017

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1. 5√6 * 1/6√216

5/6 * √1296
5/6 * √144 * √9
= 30

2. -9√28a^2 * 1/3√63a

-3√1764a^3
-3√49a^2 * √36a
-3*7a*6√a
= -126a√a

  • Algebra Work Check - ,

    5√6 * 1/(6√216)
    5√6 * 1/(6*6√6)
    5/36

    If you meant

    -9√(28a^2) * 1/(3√(63a))
    -9(2a√7) * 1/(3*3√(7a))
    -18a√7 / 9√7√a
    = -2√a

  • Algebra Work Check - ,

    The problems are 5√6 * (1/6)√216 and -9√28a^2 * (1/3)√63a.

    Actually, I checked my final answers, but I just wanted to make sure that my process is correct.

  • Algebra Work Check - ,

    In that case, you are correct.

    The expressions are complicated enough that if you came up with the correct answers, your process was likely correct.

  • Algebra Work Check - ,

    Thanks!

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