Question

answer the question​

Answer 1

Answer:

130

Step-by-step explanation:

x - 1/x = 5

=> (x - 1/x)² = 25

=> x² + 1/x² - 2(x)(1/x) = 25

=> x² + 1/x² = 27

(x² + 1/x²) (x - 1/x) = (27)(5) = 135

=> x³ - x + 1/x - 1/x³ = 135

=> x³ - 1/x³ = 135 + ( x - 1/x ) = 135 - 5 = 130