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623

Centuries: 6th century - 7th century - 8th century

Decades: 570s 580s 590s 600s 610s - 620s - 630s 640s 650s 660s 670s

Years: 618 619 620 621 622 - 623 - 624 625 626 627 628


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Quadratic formula

... in two points.) If the discriminant is negative, then there are two different solutions x, both of which are complex numbers. The two solutions are complex conjugates ...

 
 
 
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