1-(8)/(x+1)^3=0

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Solution for 1-(8)/(x+1)^3=0 equation: 


D( x )

(x+1)^3 = 0

(x+1)^3 = 0

(x+1)^3 = 0

x+1 = 0 // - 1

x = -1

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

1-(8/((x+1)^3)) = 0

1-8*(x+1)^-3 = 0

1-8/((x+1)^3) = 0

(1*(x+1)^3)/((x+1)^3)-8/((x+1)^3) = 0

1*(x+1)^3-8 = 0

x^3+3*x^2+3*x-7 = 0

x^3+3*x^2+3*x-7 = 0

x^3+3*x^2+3*x-7 = 0

{ 1, -1, 7, -7 }

1

x = 1

x^3+3*x^2+3*x-7 = 0

1

x-1

x^2+4*x+7

x^3+3*x^2+3*x-7

x-1

x^2-x^3

4*x^2+3*x-7

4*x-4*x^2

7*x-7

7-7*x

0

x^2+4*x+7 = 0

DELTA = 4^2-(1*4*7)

DELTA = -12

DELTA < 0

x in { 1} 

x-1 = 0

(x-1)/((x+1)^3) = 0

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

x-1 = 0

x-1 = 0 // + 1

x = 1

x = 1

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