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Math Help - Surds question 1

  1. #1
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    Surds question 1

    Work out (5 - square root of 2) (2 + 5 square root of 2) all divided by square root of 8

    I got 11.5 is this correct?
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  2. #2
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    e^(i*pi)'s Avatar
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    Can you use FOIL to expand the numerator?
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  3. #3
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    e^(i*pi) I think you miss read my question, sorry I wish I could write in that special language. The second bracket is (2 + 5 square root of 2)
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  4. #4
    MHF Contributor harish21's Avatar
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    Quote Originally Posted by Natasha1 View Post
    Work out (5 - square root of 2) (2 + 5 square root of 2) all divided by square root of 8

    I got 11.5 is this correct?

    Yes.
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