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568

Centuries: 5th century - 6th century - 7th century

Decades: 510s - 520s - 530s - 540s - 550s - 560s - 570s - 580s - 590s - 600s - 610s

Years: 563 564 565 566 567 568 569 570 571 572 573


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Quadratic formula

... touches the x-axis in a single point.) If the discriminant is positive, then there are two different solutions x, both of which are real. (Geometrically, this means ...

 
 
 
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