3/7x^2-3/14x-5/7

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Solution for 3/7x^2-3/14x-5/7 equation: 


x in (-oo:+oo)

(3/7)*x^2-((3/14)*x)-(5/7) = 0

(3/7)*x^2+(-3/14)*x-5/7 = 0

3/7*x^2-3/14*x-5/7 = 0

DELTA = (-3/14)^2-(-5/7*3/7*4)

DELTA = 249/196

DELTA > 0

x = ((249/196)^(1/2)+3/14)/(3/7*2) or x = (3/14-(249/196)^(1/2))/(3/7*2)

x = 7/6*((249/196)^(1/2)+3/14) or x = 7/6*(3/14-(249/196)^(1/2))

x in { 7/6*(3/14-(249/196)^(1/2)), 7/6*((249/196)^(1/2)+3/14) }

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