w+4=63/w

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Solution for w+4=63/w equation: 


D( w )

w = 0

w = 0

w = 0

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

w+4 = 63/w // - 63/w

w-(63/w)+4 = 0

w-63*w^-1+4 = 0

1*w^1-63*w^-1+4*w^0 = 0

(1*w^2+4*w^1-63*w^0)/(w^1) = 0 // * w^2

w^1*(1*w^2+4*w^1-63*w^0) = 0

w^1

w^2+4*w-63 = 0

w^2+4*w-63 = 0

DELTA = 4^2-(-63*1*4)

DELTA = 268

DELTA > 0

w = (268^(1/2)-4)/(1*2) or w = (-268^(1/2)-4)/(1*2)

w = (2*67^(1/2)-4)/2 or w = (-2*67^(1/2)-4)/2

w in { (-2*67^(1/2)-4)/2, (2*67^(1/2)-4)/2} 

w in { (-2*67^(1/2)-4)/2, (2*67^(1/2)-4)/2 }

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