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Mello

  • 2 years ago

Simplify the following

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  1. Mello
    • 2 years ago
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    \[\frac{ 7\sqrt{5}-9\sqrt{5} }{ \sqrt{5}-\sqrt{3} }\]

  2. hartnn
    • 2 years ago
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    what have u tried ?

  3. Mello
    • 2 years ago
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    Nothing yet, this was a longer expression. This is as far as I was able to simplify it. But I'm certain it's meant to be simpler than this.

  4. hartnn
    • 2 years ago
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    multiply and divide by root 5 + root 3

  5. Mello
    • 2 years ago
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    |dw:1351744179569:dw|

  6. hartnn
    • 2 years ago
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    7 root 13 ? how ? and last term = -9*3

  7. Mello
    • 2 years ago
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    Right, sorry. 7 root 15. and -9*3

  8. hartnn
    • 2 years ago
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    it should be 7root 15

  9. Mello
    • 2 years ago
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    |dw:1351744442302:dw|

  10. Mello
    • 2 years ago
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    |dw:1351744481155:dw|

  11. hartnn
    • 2 years ago
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    absolutely correct! good :)

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