(w/w-1)-(5w/5w-2)=w-2/5w-7w+2

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Solution for (w/w-1)-(5w/5w-2)=w-2/5w-7w+2 equation: 


D( w )

w = 0

w = 0

w = 0

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

w/w-(((5*w)/5)*w)-1+2 = w-((2/5)*w)-(7*w)+2 // - w-((2/5)*w)-(7*w)+2

(2/5)*w-(((5*w)/5)*w)-w+7*w+w/w-2-1+2 = 0

(2/5)*w-w^2-w+7*w+w/w-2-1+2 = 0

32/5*w-w^2 = 0

DELTA = (32/5)^2-(-1*0*4)

DELTA = 1024/25

DELTA > 0

w = ((1024/25)^(1/2)-32/5)/(-1*2) or w = (-(1024/25)^(1/2)-32/5)/(-1*2)

w = 0 or w = 32/5

w in { 0} 

w = 32/5

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