7x^2=14x-13/9

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Solution for 7x^2=14x-13/9 equation: 


x in (-oo:+oo)

7*x^2 = 14*x-(13/9) // - 14*x-(13/9)

7*x^2-(14*x)+13/9 = 0

7*x^2-14*x+13/9 = 0

7*x^2-14*x+13/9 = 0

DELTA = (-14)^2-(13/9*4*7)

DELTA = 1400/9

DELTA > 0

x = ((1400/9)^(1/2)+14)/(2*7) or x = (14-(1400/9)^(1/2))/(2*7)

x = ((1400/9)^(1/2)+14)/14 or x = (14-(1400/9)^(1/2))/14

x in { (14-(1400/9)^(1/2))/14, ((1400/9)^(1/2)+14)/14 }

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