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Math·Advanced Math·Nonlinear equations in one variable and systems of equations in two variables

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$x(x+3)-1=0$

What are the solutions to the given equation?

A

$x=\frac{-3\pm \sqrt{13}}{2}$

B

$x=\frac{-3\pm \sqrt{5}}{2}$

C

$x=\frac{3\pm \sqrt{13}}{2}$

D

$x=\frac{3\pm \sqrt{5}}{2}$