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GodBlessYou

  • 3 years ago

Find the square roots...

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  1. GodBlessYou
    • 3 years ago
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    |dw:1337828212155:dw|

  2. xRAWRRx3
    • 3 years ago
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    24

  3. zepp
    • 3 years ago
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    No calculator? o.O

  4. xRAWRRx3
    • 3 years ago
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    I memorized my square roots LOL

  5. GodBlessYou
    • 3 years ago
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    How do you know its 24? How do you get that? Yes I have a calcualtor. They want me to use the factoring method or the extracting method.

  6. zepp
    • 3 years ago
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    Haha nice :)

  7. GodBlessYou
    • 3 years ago
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    I just need to know the process

  8. zepp
    • 3 years ago
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    Oh, then you'll have to go crazy and do \(\sqrt{2*288}\) \(\sqrt{2*2*144}\) .... \(\sqrt{2*2*2*2*2*2*3*3} \)

  9. GodBlessYou
    • 3 years ago
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    Thank you.

  10. Mertsj
    • 3 years ago
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    \[\sqrt{576}=\sqrt{2\times2\times \times2\times2\times2\times2\times3\times3\times}=\sqrt{2^6\times3^2}=2^3\times3=24\]

  11. zepp
    • 3 years ago
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    Then \(\sqrt{2^6*3^2}=2^3*3=24\)

  12. amistre64
    • 3 years ago
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    or "long division" works too

  13. GodBlessYou
    • 3 years ago
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    What I also want to know is how to do the square root of 2,916. They literally want me to write all that out. Where do I start?!

  14. amistre64
    • 3 years ago
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    divvy it up into parts of "2" and the algorithm is a sort of long hand division

  15. GodBlessYou
    • 3 years ago
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    you mean just divide by 2?

  16. amistre64
    • 3 years ago
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    5 4 _________ /29 16 25 ---- 10,4 /416 416 answer is 54

  17. amistre64
    • 3 years ago
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    its an alogrithm based off of x^2 + 2xy + y^2

  18. zepp
    • 3 years ago
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    \(\large (50+x)^2=2916\)

  19. zepp
    • 3 years ago
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    :( stealing my words lol @amistre, you exist twice D: http://puu.sh/ws3B

  20. amistre64
    • 3 years ago
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    im very existential lol

  21. luisrock2008
    • 3 years ago
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    what times what gives you that

  22. amistre64
    • 3 years ago
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    i think this times that would work

  23. GodBlessYou
    • 3 years ago
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    That actually is the problem i dont understand. How do you find what goes into such a big number I get the general idea of how to work these it is just that though. :/

  24. amistre64
    • 3 years ago
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    make it smaller

  25. zepp
    • 3 years ago
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    \(\large \begin{align} (50+x)^2&=2916 \\ 50^2 + 2*50x + x^2 &= 2916 \\ 2500+100x+x^2&=2916 \\ x^2+100x-416&=0 \\ (x+4)(x-104)&=0 \\ x &=4~or104 \end{align} \)

  26. zepp
    • 3 years ago
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    My method looks quite horrible to look at :S

  27. amistre64
    • 3 years ago
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    it needs more colors

  28. zepp
    • 3 years ago
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    Haha xD

  29. GodBlessYou
    • 3 years ago
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    So you always use 50 + x as an outline?

  30. zepp
    • 3 years ago
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    Depends, because the nearest number squared is 50(50^2 =2500)

  31. amistre64
    • 3 years ago
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    50*50 = 2500 60*60 = 3600 use the one thats closer to 2900

  32. GodBlessYou
    • 3 years ago
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    Ok. I will have to go over this. Thank you all! :D

  33. zepp
    • 3 years ago
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    You are welcome :)

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