Question

x² + x + 1 = 0 then find the value of (x³ + 1/x³)³

Answer 1

x+1/x=-1. Cube this equation. You get x³+1/x³+3(x+1/x)=-1 i.e. x³+1/x³=2. Hence, you have (x³+1/x³)³=2³=8. Answer: 8

Answer 2

Answer:

hello mate use identities

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Step-by-step explanation: