Question

If x-1/x=2,find the value of x^3-1/x^3

Answer 1

x-1/x=2
(X-1/x)cube=2cube
x cube -(1/x)cube-3(x-1/x)=8
x cube -1/x cube -3×2=8
x cube-1/x cube=14
hope this is correct.

Answer 2

heya!!


please refer this attachment


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