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katlin95

  • one year ago

solve for x: sqrt x+16 - sqrt x-2=0 A. 3 B. 7 C. 9 D. 15

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  1. katlin95
    • one year ago
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    @jim_thompson5910 i got 9

  2. electrokid
    • one year ago
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    It cannot be this way! \[\sqrt{x+16}-\sqrt{x-2}=0\]

  3. katlin95
    • one year ago
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    so what would be my answer then?

  4. electrokid
    • one year ago
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    is the question the way I wrote?

  5. katlin95
    • one year ago
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    yep

  6. electrokid
    • one year ago
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    if the question is exactly like I wrote, then there can be no solution for it!

  7. katlin95
    • one year ago
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    for the second part the sqrt is only over 2x

  8. electrokid
    • one year ago
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    check the question and use the equation editor below to enter the equation

  9. katlin95
    • one year ago
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    I mean x lol

  10. electrokid
    • one year ago
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    see..!!

  11. electrokid
    • one year ago
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    so, like this?\[\sqrt{x+16}-\sqrt{x}-2=0\]

  12. katlin95
    • one year ago
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    yes:)

  13. jim_thompson5910
    • one year ago
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    if the equation is \[\sqrt{x+16}-\sqrt{x}-2=0\], then the answer is x = 9 like you got katlin95, so congrats

  14. electrokid
    • one year ago
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    then yes.

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