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GoldRush18 Group Title

without the use of tables or a calculator, simplify

  • 2 years ago
  • 2 years ago

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  1. GoldRush18 Group Title
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    \[\sqrt{28 + \sqrt{343}}\] in the form ksqrt7 where k is an integer

    • 2 years ago
  2. jim_thompson5910 Group Title
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    Is it supposed to be \[\sqrt{28} + \sqrt{343}\] instead?

    • 2 years ago
  3. ashishthomas7 Group Title
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    \[\sqrt{7*4+\sqrt{7^{3}}}\]

    • 2 years ago
  4. GoldRush18 Group Title
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    @jim_thompson5910 yes i couldnt get it like that

    • 2 years ago
  5. jim_thompson5910 Group Title
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    alright thank you

    • 2 years ago
  6. jim_thompson5910 Group Title
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    \[\Large \sqrt{28} + \sqrt{343}\] \[\Large \sqrt{4*7} + \sqrt{49*7}\] \[\Large \sqrt{4}*\sqrt{7} + \sqrt{49}*\sqrt{7}\] \[\Large 2*\sqrt{7} + 7*\sqrt{7}\] \[\Large (2 + 7)*\sqrt{7}\] \[\Large 9\sqrt{7}\] So the answer is \[\Large 9\sqrt{7}\]

    • 2 years ago
  7. ashishthomas7 Group Title
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    \[9\sqrt{7}\]

    • 2 years ago
  8. GoldRush18 Group Title
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    thank you

    • 2 years ago
  9. jim_thompson5910 Group Title
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    you're welcome

    • 2 years ago
  10. ashishthomas7 Group Title
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    you're welcome

    • 2 years ago
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