15n^2-2/3n-1

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Solution for 15n^2-2/3n-1 equation: 


n in (-oo:+oo)

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

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

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

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

DELTA = 544/9

DELTA > 0

n = ((544/9)^(1/2)+2/3)/(2*15) or n = (2/3-(544/9)^(1/2))/(2*15)

n = ((544/9)^(1/2)+2/3)/30 or n = (2/3-(544/9)^(1/2))/30

n in { (2/3-(544/9)^(1/2))/30, ((544/9)^(1/2)+2/3)/30 }

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