3=w-10/w

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Solution for 3=w-10/w equation: 


D( w )

w = 0

w = 0

w = 0

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

3 = w-(10/w) // - w-(10/w)

10/w-w+3 = 0

10*w^-1-1*w^1+3*w^0 = 0

(3*w^1-1*w^2+10*w^0)/(w^1) = 0 // * w^2

w^1*(3*w^1-1*w^2+10*w^0) = 0

w^1

3*w-w^2+10 = 0

3*w-w^2+10 = 0

DELTA = 3^2-(-1*4*10)

DELTA = 49

DELTA > 0

w = (49^(1/2)-3)/(-1*2) or w = (-49^(1/2)-3)/(-1*2)

w = -2 or w = 5

w in { -2, 5} 

w in { -2, 5 }

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