Question

When x - 1/x = 1, find x4 + 1/x4​

Answer 1

Step-by-step explanation:

x-1/x=1

(x-1/x)²=1

x²+1/x²-2=1

(x²+1/x²)=3

(x²+1/x²)²=9

x⁴+1/x⁴+2=9

x⁴+1/x⁴=7