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ExtremeAnon

  • 2 years ago

-4√(x+9)=20

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  1. ExtremeAnon
    • 2 years ago
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    \[\LARGE -4\sqrt{x+9} = 20\]

  2. ExtremeAnon
    • 2 years ago
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    Help, please?

  3. myininaya
    • 2 years ago
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    Divide both sides by -4 to get the radical containing x by itself.

  4. myininaya
    • 2 years ago
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    Then ask yourself can you ever have the square root of something have a negative output?

  5. ExtremeAnon
    • 2 years ago
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    I don't know what I would get if I did that because I don't know how to divide with a square root or anything like that...

  6. ExtremeAnon
    • 2 years ago
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    @pkjha3105 ? Any help please?

  7. Fools101
    • 2 years ago
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    Hi ^_^ are we trying to fine x?

  8. robert1
    • 2 years ago
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    no soluction

  9. pkjha3105
    • 2 years ago
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    x ll hve imaginary value.....there is no real sol. of x..

  10. Fools101
    • 2 years ago
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    that was i was thinking that why i was asking!

  11. ExtremeAnon
    • 2 years ago
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    Yes trying to find X & so there's no solution? Why?

  12. Fools101
    • 2 years ago
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    So let's say you have an equation that's 2x=2x. Of course that one is obvious. When you divide by x (you're not supposed to do that because you lose a 0), you get 2=2, which means all solutions work. A little less obvious is 64x=(4^2)*4x. That will also get you 64=64 or x=x depending on which way you divide. This also means all solutions. I think!

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