## Encyclopedia > 1542

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# 1542

Years: 1537 1538 1539 1540 1541 - 1542 - 1543 1544 1545 1546 1547

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 Quadratic formula ... \frac{c}{a}=0 [/itex] which is equivalent to $x^2+\frac{b}{a}x=-\frac{c}{a}.$ The equation is now in a form in which we ca ...