x2/3-7x1/3

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Solution for x2/3-7x1/3 equation: 


x in (-oo:+oo)

(x^2)/3-((7*x^1)/3) = 0

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

1/3*x^2-7/3*x = 0

DELTA = (-7/3)^2-(0*1/3*4)

DELTA = 49/9

DELTA > 0

x = ((49/9)^(1/2)+7/3)/(1/3*2) or x = (7/3-(49/9)^(1/2))/(1/3*2)

x = 7 or x = 0

x in { 0, 7 }

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