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Kris5

  • 2 years ago

HELPPP (1/2 radical y) (-6radical y)

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  1. Kris5
    • 2 years ago
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    \[(1/2\sqrt{Y}) (-6\sqrt{Y)}\]

  2. Kris5
    • 2 years ago
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    actually it's a -1/2

  3. radar
    • 2 years ago
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    |dw:1351114021944:dw|

  4. radar
    • 2 years ago
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    If the 1/2 is also negative then it would be\[3y\]

  5. Kris5
    • 2 years ago
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    I don't get it

  6. radar
    • 2 years ago
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    What do you "don't get"?

  7. Kris5
    • 2 years ago
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    the multiplication

  8. radar
    • 2 years ago
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    \[\sqrt{a}\times \sqrt{a}= a\]

  9. radar
    • 2 years ago
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    Or \[(a ^{1/2 }) x (a ^{1/2})=a ^{(1/2 + 1/2)}= a ^{1}=a\]

  10. radar
    • 2 years ago
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    (-2)(-3)=+6 Multiplication when signs are alike. Although you were confusing about the signs.

  11. radar
    • 2 years ago
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    (-1/2)(-6)= 3 see above.

  12. Kris5
    • 2 years ago
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    :/ I'm using the foil method and I'm not getting it. Thanks.

  13. radar
    • 2 years ago
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    I just multiplied the two terms as they were each enclosed by parentheses (no need to foil)

  14. radar
    • 2 years ago
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    Restate the problem.

  15. radar
    • 2 years ago
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    |dw:1351114861577:dw|

  16. Kris5
    • 2 years ago
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    so all you did was mutiply 1/2 by -6 and mulitplied radical y by radical y. so then you get -3y?

  17. radar
    • 2 years ago
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    Yes, I believe that was the problem.

  18. Kris5
    • 2 years ago
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    I have a test on this tomorrow. I'm stressed :/

  19. Kris5
    • 2 years ago
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    Thank you

  20. Kris5
    • 2 years ago
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    :)

  21. radar
    • 2 years ago
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    Good luck on the test.

  22. Kris5
    • 2 years ago
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    Thank you

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spraguer (Moderator)
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