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Chiba

Chiba (千葉) is both a city and a prefecture in the Kanto region of Japan. It is situated across Tokyo Bay from Tokyo and includes Narita International Airport and a number of suburbs.

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Quadratic formula

... have y = b/(2a), so we add the square of b/(2a) to both sides, getting <math>x^2+\frac{b}{a}x+\frac{b^2}{4a^2}=-\frac{c}{a}+\frac{b^2}{4a^2}.</math> Th ...