Question

X+1/x=5 then x^2+1/x^2 andx^4+1/x^4

Answer 1

Answer:

Step-by-step explanation:

x + 1/x = 5.

x² + 1/x² = (x + 1/x)² - 2

              = 25 - 2 = 23.

x⁴ + 1/x⁴ = (x² + 1/x²)² - 2

              = 529 - 2

              = 527.