(3x+4)/(x^2+1)

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Solution for (3x+4)/(x^2+1) equation: 


D( x )

x^2+1 = 0

x^2+1 = 0

x^2+1 = 0

1*x^2 = -1 // : 1

x^2 = -1

x in (-oo:+oo)

(3*x+4)/(x^2+1) = 0

3*x+4 = 0 // - 4

3*x = -4 // : 3

x = -4/3

x = -4/3

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