(3x^2+10x+3)/(x+3)

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Solution for (3x^2+10x+3)/(x+3) equation: 


D( x )

x+3 = 0

x+3 = 0

x+3 = 0

x+3 = 0 // - 3

x = -3

x in (-oo:-3) U (-3:+oo)

(3*x^2+10*x+3)/(x+3) = 0

3*x^2+10*x+3 = 0

3*x^2+10*x+3 = 0

DELTA = 10^2-(3*3*4)

DELTA = 64

DELTA > 0

x = (64^(1/2)-10)/(2*3) or x = (-64^(1/2)-10)/(2*3)

x = -1/3 or x = -3

(x+3)*(x+1/3) = 0

x+1/3 = 0

x+1/3 = 0 // - 1/3

x = -1/3

x = -1/3

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