A Different Approach!

Algebra Level 4

if a,b,c are the roots of the equation x3x1=0{ x }^{ 3 }-x-1=0 find 1a+1+1b+1+1c+1\frac { 1 }{ a+1 } +\frac { 1 }{ b+1 } +\frac { 1 }{ c+1 }

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