2(x+1)+1/(x+1)+1

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Solution for 2(x+1)+1/(x+1)+1 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)

2*(x+1)+1/(x+1)+1 = 0

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

2*(x+1)^2+1*(x+1)+1 = 0

2*x^2+4*x+x+1+3 = 0

2*x^2+5*x+4 = 0

2*x^2+5*x+4 = 0

2*x^2+5*x+4 = 0

DELTA = 5^2-(2*4*4)

DELTA = -7

DELTA < 0

1 = 0

1/(x+1) = 0

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

1 = 0

x belongs to the empty set

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