Encyclopedia > 18th century BC

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18th century BC

(19th century BC - 18th century BC - 17th century BC - other centuries)

(3rd millennium BC - 2nd millennium BC - 1st millennium BC)


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Quadratic formula

... means that the parabola described by the quadratic equation touches the x-axis in a single point.) If the discriminant is positive, then there are two differe ...

 
 
 
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