x^2-4/11x

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Solution for x^2-4/11x equation: 


x in (-oo:+oo)

x^2-((4/11)*x) = 0

x^2+(-4/11)*x = 0

x^2-4/11*x = 0

DELTA = (-4/11)^2-(0*1*4)

DELTA = 16/121

DELTA > 0

x = ((16/121)^(1/2)+4/11)/(1*2) or x = (4/11-(16/121)^(1/2))/(1*2)

x = 4/11 or x = 0

x in { 0, 4/11 }

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