y^2-16/2y*5y/y-4

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Solution for y^2-16/2y*5y/y-4 equation: 


D( y )

y = 0

y = 0

y = 0

y in (-oo:0) U (0:+oo)

y^2-((5*(16/2)*y*y)/y)-4 = 0

y^2-40*y-4 = 0

y^2-40*y-4 = 0

DELTA = (-40)^2-(-4*1*4)

DELTA = 1616

DELTA > 0

y = (1616^(1/2)+40)/(1*2) or y = (40-1616^(1/2))/(1*2)

y = (4*101^(1/2)+40)/2 or y = (40-4*101^(1/2))/2

y in { (40-4*101^(1/2))/2, (4*101^(1/2)+40)/2 }

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