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anonymous

  • one year ago

simplify 4sqrt400/4sqrt5 Can someone walk me through the steps?

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  1. anonymous
    • one year ago
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    \[\frac{ 4\sqrt{400} }{4\sqrt{5} }\]

  2. Loser66
    • one year ago
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    |dw:1432774174095:dw|

  3. anonymous
    • one year ago
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    the 4 is included not multiplied

  4. Loser66
    • one year ago
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    |dw:1432774244043:dw|

  5. Loser66
    • one year ago
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    |dw:1432774344642:dw|

  6. anonymous
    • one year ago
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    Could you explain the steps and would I need to simplify it further than 4sqrt/80?

  7. Loser66
    • one year ago
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    |dw:1432774375098:dw|

  8. Loser66
    • one year ago
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    The net is so bad here. So that I try to give you the whole thing first, in case I lost the net again. If you can understand it by yourself, it 's pretty good. If you don't, I explain now.

  9. Loser66
    • one year ago
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    1) Since both numerator and denominator both are 4th root, we can combine. And then simplify.|dw:1432774550241:dw|

  10. Loser66
    • one year ago
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    2) To take a number out of the root, we need the number has the exponent = the root. In this case, it is 4, so that I tried to get a number ^ 4, that is \(2^4\) because \(2^4*5 =80\)

  11. Loser66
    • one year ago
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    |dw:1432774688887:dw|

  12. Loser66
    • one year ago
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    Only 2 can get out of the 4th root, since its exponent is 4 while 5 cannot. Hence 2 goes out of the root and 5 must stay inside ( they have to say "goodbye" to each other. |dw:1432774780928:dw|

  13. Loser66
    • one year ago
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    YES? NO??

  14. anonymous
    • one year ago
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    yes!!

  15. anonymous
    • one year ago
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    plzz give him a meda

  16. anonymous
    • one year ago
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    he deserves it

  17. anonymous
    • one year ago
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    u forgort me!!

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spraguer (Moderator)
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