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kaymarie12479

(3+5sqrt2)(4-sqrt2)

  • 2 years ago
  • 2 years ago

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  1. SsgtSyms
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    The approximate answer would be 26.04163056....... Your minimal polynomial would be x^2-4x-574

    • 2 years ago
  2. lcf1999
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    just to clarify is this what you meant: \[(3+5\sqrt{2})(4-\sqrt{2})\]

    • 2 years ago
  3. MarineFury
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    if you expand that out it becomes 12 - 3sqrt(2) + 20sqrt(2) - 5(2) which is 2 + 17sqrt(2)

    • 2 years ago
  4. lcf1999
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    if so 3 times 4 is 12, 5 sqrt 2 times sqrt 2 is 5 sqrt 4 so that 4 would be out to 2 and 2 times 5 is 10 so 8-10 is -2 which is your answer.

    • 2 years ago
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