Question

if (x+1/x) =5,find the value of (x^4+1/x^4)​

Answer 1

Solution is in the pic

Formula used is

(a+b)^2=a^2+b^2+2ab

(X+1/X)^2=x^2+1/x^2 +2× x × 1/x

and

(x^2+1/x^2)^2=x^4+1/x^4 +2×x^2×1/x^2

Answer 2

Answer is -3

Step-by-step explanation: