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anonymous

  • one year ago

Is this correct?

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  1. UsukiDoll
    • one year ago
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    |dw:1434337660225:dw|

  2. anonymous
    • one year ago
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    |dw:1434337652479:dw|

  3. UsukiDoll
    • one year ago
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    is that a negative inside the radical?

  4. UsukiDoll
    • one year ago
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    because if there is a negative inside the radical we have imaginary numbers and they aren't real

  5. anonymous
    • one year ago
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    yes

  6. UsukiDoll
    • one year ago
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    ok...I already said it if there was a negative inside the radical , it leads to imaginary number... a.k.a i

  7. anonymous
    • one year ago
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    meant yes meaning that I understood lol

  8. UsukiDoll
    • one year ago
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    \[\sqrt{-1} = i, -i \] \[\sqrt{-4} = +2i , -2i\] some algebra ii stuff xD

  9. anonymous
    • one year ago
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    |dw:1434337932762:dw|

  10. anonymous
    • one year ago
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    so than what would that be? @UsukiDoll

  11. UsukiDoll
    • one year ago
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    what is that? can you redraw it... if the - sign is outside... it would still be real.

  12. anonymous
    • one year ago
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    @UsukiDoll It's outside

  13. UsukiDoll
    • one year ago
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    ok... that won't change anything... as long as the - isn't inside we're good but what is that number inside the radical?

  14. anonymous
    • one year ago
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    124

  15. UsukiDoll
    • one year ago
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    \[-\sqrt{124}\] now can we split that number so we can have a perfect square?

  16. UsukiDoll
    • one year ago
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    I think this time the perfect square number is going to be small... there is only 1 that works

  17. UsukiDoll
    • one year ago
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    \[-\sqrt{(4)(31)}\] I think you can handle this from here.

  18. UsukiDoll
    • one year ago
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    you just have to take the square root of 4...and you have the final answer.

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spraguer (Moderator)
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