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anonymous

  • 5 years ago

SIMPLIFY : square root of 27x^8y^5

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  1. Vijay
    • 5 years ago
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    \[3y^2 x^4 \sqrt{3y}\]

  2. anonymous
    • 5 years ago
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    ?

  3. anonymous
    • 5 years ago
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    can you explain how you got that please!

  4. Vijay
    • 5 years ago
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    \[\sqrt{3*3^2*(x^4)^2*(y^2)^2*y}\]

  5. anonymous
    • 5 years ago
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    in words.... please

  6. anonymous
    • 5 years ago
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    from your final answer in words can you please explain what you did.. i am looking for explinations.

  7. Vijay
    • 5 years ago
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    After that , when you square root them , power 2 will ignore by sqrt. then 3 and y will be inside the sqrt ., others will come out.

  8. anonymous
    • 5 years ago
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    no i mean from the begining please!

  9. anonymous
    • 5 years ago
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    so looking at the equation what is the first step that i would taking in simplifying it?

  10. Preetha
    • 5 years ago
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    I think what Vijay did was to break each term down into something x a square. So 27 is 3 x (3x3) or 3 x 3^2. x^8 is x^4 squared. And y^5 is y^4 x y.

  11. Vijay
    • 5 years ago
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    Thanks preetha

  12. Preetha
    • 5 years ago
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    Then you take the square root of this equation he has written out so nicely with the equation editor. So if you have 3 x (3x3) the sq. root of that is sqrt 3 (3), sqrt of (x4)^2 is x^4 and sqrt of y(y^4) is sqrt y (y^2).

  13. Preetha
    • 5 years ago
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    Then you put the three terms together. Hope that helps. I am just too lazy to use the equation editor. Good job Vijay.

  14. anonymous
    • 5 years ago
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    hello?

  15. Vijay
    • 5 years ago
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    yes

  16. anonymous
    • 5 years ago
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    nevermind i got it ! thanks. but here is one : twelve network printers can produce a set of documents in 20 hours. how long would it take 15 printers to get the same job done? (the time is inversly proportional tot the # of printers used for job)

  17. Vijay
    • 5 years ago
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    =(20/12) * 15 =25 hours

  18. anonymous
    • 5 years ago
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    why did you multiply by 15?

  19. anonymous
    • 5 years ago
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    the answer says 16 hrs... i am unsure how the book got that.

  20. Vijay
    • 5 years ago
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    yes, 25 is wrong, wait i l do it

  21. anonymous
    • 5 years ago
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    i got it. 15/12 = 20/x 15x= 12*20 15/240 = 16

  22. Vijay
    • 5 years ago
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    yes, gud

  23. anonymous
    • 5 years ago
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    hey i just posted something do you know how to factor?

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