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Mindblast3r

  • one year ago

how does finding square roots work???

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  1. mindblast3r
    • one year ago
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    like improper square roots.

  2. mindblast3r
    • one year ago
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    \[\sqrt{7}+\sqrt{40}\]

  3. Nnesha
    • one year ago
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    you need to factor 40

  4. mindblast3r
    • one year ago
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    |dw:1433116028145:dw|

  5. mindblast3r
    • one year ago
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    done

  6. mindblast3r
    • one year ago
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    |dw:1433116056302:dw|

  7. Nnesha
    • one year ago
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    yeah but remember 40 is under square root so one of factor must be perfect square root

  8. mindblast3r
    • one year ago
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    done and done.

  9. Nnesha
    • one year ago
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    yep that's right

  10. Nnesha
    • one year ago
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    \[\sqrt{7}+2\sqrt{10}\] that's it both root are not same so you can't do anything else

  11. mindblast3r
    • one year ago
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    hm i had the wrong question then.

  12. mindblast3r
    • one year ago
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    how do i find a imperfect square root? like is the only way to do it manually?

  13. mindblast3r
    • one year ago
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    @nnesha

  14. mindblast3r
    • one year ago
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    like 2.6 * 2.6 = 6.76

  15. mindblast3r
    • one year ago
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    2.61 * 2.61 = 6.8121

  16. mindblast3r
    • one year ago
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    is that the only way to find out?

  17. Nnesha
    • one year ago
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    first step is to factor that number (one of number should be perfect square root )

  18. mindblast3r
    • one year ago
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    just keep upping the numbers until i find 7?

  19. Nnesha
    • one year ago
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    ii don't understand that decimal question

  20. mindblast3r
    • one year ago
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    \[\sqrt{7}\]

  21. mindblast3r
    • one year ago
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    say i want to figure the answer out to this, how would i do it? Is the only way to figure this out is by doing it manually?

  22. mindblast3r
    • one year ago
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    there are no perfect squares in this.

  23. Nnesha
    • one year ago
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    well that's going to be a decimal answer bec factor of 7 is just one 1 and 7

  24. Nnesha
    • one year ago
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    yes right

  25. mindblast3r
    • one year ago
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    so then you're telling me the only way to figure out the answer is by doing the question manually?

  26. mindblast3r
    • one year ago
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    2.6457513 * 2.6457513 = 7

  27. Nnesha
    • one year ago
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    square root of 7 is an irrational number you have to use a calculator for that .-.

  28. Nnesha
    • one year ago
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    7 is a prime number and square root of 7 would be loooooon number

  29. mindblast3r
    • one year ago
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    or do it manually, but that takes ages. ahh i see... i knew it ! okay thank you, that's what i was asking initially.

  30. Nnesha
    • one year ago
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    yeee .-... use any calculator ti 84 or 83 or simple cal or google calc don't even try to use *human calculator* :P

  31. mindblast3r
    • one year ago
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    LOL!

  32. Nnesha
    • one year ago
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    ;P

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