m-5/m=4

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Solution for m-5/m=4 equation: 


D( m )

m = 0

m = 0

m = 0

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

m-(5/m) = 4 // - 4

m-(5/m)-4 = 0

m-5*m^-1-4 = 0

1*m^1-5*m^-1-4*m^0 = 0

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

m^1*(1*m^2-4*m^1-5*m^0) = 0

m^1

m^2-4*m-5 = 0

m^2-4*m-5 = 0

DELTA = (-4)^2-(-5*1*4)

DELTA = 36

DELTA > 0

m = (36^(1/2)+4)/(1*2) or m = (4-36^(1/2))/(1*2)

m = 5 or m = -1

m in { -1, 5} 

m in { -1, 5 }

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