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23 September, 04:17

1. show your work

4√6 / √30

2. simplify, and show your work

(2√5+3√7) ^2

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Answers (1)
  1. 23 September, 07:32
    0
    1. by rationalizing the denominator?

    2. (2sqrt5 + 3sqrt7) * (2sqrt5 + 3sqrt7)

    = 4 * 5 + 6 sqrt35 + 6 sqrt35 + 9 * 7

    = 20 + 63 + 12sqrt35

    = 83 + 12sqrt35
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