4x/7-x^2

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Solution for 4x/7-x^2 equation: 


x in (-oo:+oo)

(4*x)/7-x^2 = 0

4/7*x-x^2 = 0

DELTA = (4/7)^2-(-1*0*4)

DELTA = 16/49

DELTA > 0

x = ((16/49)^(1/2)-4/7)/(-1*2) or x = (-(16/49)^(1/2)-4/7)/(-1*2)

x = 0 or x = 4/7

x in { 0, 4/7 }

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