4x/50=2/x

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Solution for 4x/50=2/x equation: 


D( x )

x = 0

x = 0

x = 0

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

(4*x)/50 = 2/x // - 2/x

(4*x)/50-(2/x) = 0

(4*x)/50-2*x^-1 = 0

2/25*x^1-2*x^-1 = 0

(2/25*x^2-2*x^0)/(x^1) = 0 // * x^2

x^1*(2/25*x^2-2*x^0) = 0

x^1

(2/25)*x^2-2 = 0

(2/25)*x^2-2 = 0

DELTA = 0^2-(-2*4*(2/25))

DELTA = 16/25

DELTA > 0

x = ((16/25)^(1/2)+0)/(2*(2/25)) or x = (0-(16/25)^(1/2))/(2*(2/25))

x = 5 or x = -5

x in { -5, 5} 

x in { -5, 5 }

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