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Katlyn99

  • 2 years ago

x^2=-9

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  1. CalebBeavers
    • 2 years ago
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    To solve you would take the square root of both sides, but you can not take the square root of a negative number. So there's no solution

  2. mark_o.
    • 2 years ago
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    but if your subject require you to find the complex root you can also solve this

  3. mark_o.
    • 2 years ago
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    its just it has no Real number solution root , but theres complex root, do you want me to show you?

  4. Katlyn99
    • 2 years ago
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    yes

  5. mark_o.
    • 2 years ago
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    remember \[\sqrt{-1}=i\]

  6. mark_o.
    • 2 years ago
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    x^2=-9 square root on both sides gives \[x=\sqrt{-9}\] \[x=\sqrt{9(-1)}\] \[x=+9 i and x=-3 i\]

  7. mark_o.
    • 2 years ago
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    im sorry thats x= plus or minus 3 i

  8. mark_o.
    • 2 years ago
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    x= 3 i, x= -3 i thats your complex roots

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