(x-1)(x+1)/(x+1)=0 - solution

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Solution for (x-1)(x+1)/(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-1)*(x+1))/(x+1) = 0

x-1 = 0

x-1 = 0 // + 1

x = 1

x = 1

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