2w*2+8-w*2-5w+14/w*2-6w+5

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Solution for 2w*2+8-w*2-5w+14/w*2-6w+5 equation: 


D( w )

w = 0

w = 0

w = 0

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

2*2*w-(2*w)-(5*w)-(6*w)+2*(14/w)+5+8 = 0

2*2*w-2*w-5*w-6*w+2*(14/w)+5+8 = 0

28*w^-1-9*w^1+13*w^0 = 0

(13*w^1-9*w^2+28*w^0)/(w^1) = 0 // * w^2

w^1*(13*w^1-9*w^2+28*w^0) = 0

w^1

13*w-9*w^2+28 = 0

13*w-9*w^2+28 = 0

DELTA = 13^2-(-9*4*28)

DELTA = 1177

DELTA > 0

w = (1177^(1/2)-13)/(-9*2) or w = (-1177^(1/2)-13)/(-9*2)

w = (1177^(1/2)-13)/(-18) or w = (1177^(1/2)+13)/18

w in { (1177^(1/2)-13)/(-18), (1177^(1/2)+13)/18} 

w in { (1177^(1/2)-13)/(-18), (1177^(1/2)+13)/18 }

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