16/(x^2+6x+9)+(3)/(x+3)

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Solution for 16/(x^2+6x+9)+(3)/(x+3) equation: 


D( x )

x^2+6*x+9 = 0

x+3 = 0

x^2+6*x+9 = 0

x^2+6*x+9 = 0

x^2+6*x+9 = 0

DELTA = 6^2-(1*4*9)

DELTA = 0

x = -6/(1*2)

x = -3 or x = -3

x+3 = 0

x+3 = 0

x+3 = 0 // - 3

x = -3

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

16/(x^2+6*x+9)+3/(x+3) = 0

x^2+6*x+9 = 0

x^2+6*x+9 = 0

x^2+6*x+9 = 0

DELTA = 6^2-(1*4*9)

DELTA = 0

x = -6/(1*2)

x = -3 or x = -3

(x+3)^2 = 0

16/((x+3)^2)+3/(x+3) = 0

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

3*(x+3)+16 = 0

3*x+25 = 0

(3*x+25)/((x+3)^2) = 0

(3*x+25)/((x+3)^2) = 0 // * (x+3)^2

3*x+25 = 0

3*x+25 = 0 // - 25

3*x = -25 // : 3

x = -25/3

x = -25/3

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