Question

If x=2+√3 Find X cube =1/x cube​

Answer 1

here is you buddy

x=2+√3

cubbing both side

x³=(2+√3)³

x³=(2)³+(√3)³+3×2×√3(2+√3)

x³=8+3√3+6√3(2+√3)

x³=8+3√3+12√3+18

x³=26+15√3

Answer 2

x³=26+15√3

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thankyou