# Solve the equation x^(2)-2x-3=0

Solve the equation ${x}^{2}-2x-3=0$
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zagrebova1c
${x}^{2}-2x-3=0$
$D=\left(-2{\right)}^{2}-4\ast 1\ast \left(-3\right)=4+12=16={4}^{2}$
x1=2+4/2=3
x2=2-4/2=-1

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