If x^2+1/x^2=18 find the value of (x-1/x) and (x^3-1/x^3)

If x^2+1/x^2=18 find the value of (x-1/x) and (x^3-1/x^3) [S. Chand Class 9 Math Solution Chapter 3 Exercise 3.1 Expansion …

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