Question

plz tell me answer...​

Answer 1

Step-by-step explanation:

(x -1/x)^3 = 27

x^3 - (1/x)^3 - 3x(1/x)(x -1/x)= 27

x^3 - (1/x)^3 - 3×3 = 27

x^3 - (1/x)^3 = 27+9 = 36