(x^2+9x+8)/(x+1)=0

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Solution for (x^2+9x+8)/(x+1)=0 equation: 


D( x )

x+1 = 0

x+1 = 0

x+1 = 0

x+1 = 0 // - 1

x = -1

x in (-oo:-1) U (-1:+oo)

(x^2+9*x+8)/(x+1) = 0

x^2+9*x+8 = 0

x^2+9*x+8 = 0

DELTA = 9^2-(1*4*8)

DELTA = 49

DELTA > 0

x = (49^(1/2)-9)/(1*2) or x = (-49^(1/2)-9)/(1*2)

x = -1 or x = -8

(x+8)*(x+1) = 0

x+8 = 0

x+8 = 0 // - 8

x = -8

x = -8

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