x^2/3-2x^1/2-15=0

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Solution for x^2/3-2x^1/2-15=0 equation: 


x in (-oo:+oo)

(x^2)/3-((2*x^1)/2)-15 = 0

(x^2)/3-x-15 = 0

1/3*x^2-x-15 = 0

DELTA = (-1)^2-(-15*1/3*4)

DELTA = 21

DELTA > 0

x = (21^(1/2)+1)/(1/3*2) or x = (1-21^(1/2))/(1/3*2)

x = 3/2*(21^(1/2)+1) or x = 3/2*(1-21^(1/2))

x in { 3/2*(1-21^(1/2)), 3/2*(21^(1/2)+1) }

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