n^2/10n-5n/10n-36/10n

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Solution for n^2/10n-5n/10n-36/10n equation: 


n in (-oo:+oo)

n*((n^2)/10)-(((5*n)/10)*n)-((36/10)*n) = 0

n*((n^2)/10)+(-1/2)*n^2+(-18/5)*n = 0

1/10*n^3-1/2*n^2-18/5*n = 0

n*(1/10*n^2-1/2*n-18/5) = 0

1/10*n^2-1/2*n-18/5 = 0

DELTA = (-1/2)^2-(-18/5*1/10*4)

DELTA = 169/100

DELTA > 0

n = ((169/100)^(1/2)+1/2)/(1/10*2) or n = (1/2-(169/100)^(1/2))/(1/10*2)

n = 9 or n = -4

n = 0

n = 0

n in { -4, 9, 0 }

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