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allybally555555

  • 4 years ago

What are the solutions of x2 + 2x + 9 = 0?

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  1. Mohammad_Asad_Ali
    • 4 years ago
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    There are no soluions

  2. tmrk
    • 4 years ago
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    the solution is a complex no.

  3. Test1
    • 4 years ago
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    When you try the quadratic formula, you will have a negative number under the square root part: \[\frac{-b \pm \sqrt{b^2-4ac}}{2a}=\frac{-2\pm\sqrt{4-36}}{2}=\frac{-2\pm\sqrt{-32}}{2}\] (This is equivalent to saying the discriminant is negative). As a result, there are no real solutions to this equation.

  4. allybally555555
    • 4 years ago
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    Solve x2 – 3x = 1

  5. Test1
    • 4 years ago
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    bring the 1 to the other side, and use the same procedure as above: \[x^2-3x=1 \ \ \ \Longleftrightarrow \ \ \ x^2-3x-1=0\]

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