(x^2+17x+72)/(x+8)

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Solution for (x^2+17x+72)/(x+8) equation: 


D( x )

x+8 = 0

x+8 = 0

x+8 = 0

x+8 = 0 // - 8

x = -8

x in (-oo:-8) U (-8:+oo)

(x^2+17*x+72)/(x+8) = 0

x^2+17*x+72 = 0

x^2+17*x+72 = 0

DELTA = 17^2-(1*4*72)

DELTA = 1

DELTA > 0

x = (1^(1/2)-17)/(1*2) or x = (-1^(1/2)-17)/(1*2)

x = -8 or x = -9

(x+9)*(x+8) = 0

x+9 = 0

x+9 = 0 // - 9

x = -9

x = -9

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