Question

x-1/x=5 find the value of x^2+1/x^2​

Answer 1

Answer:

x-1/x=5

squaring on both sides

(x-1/x)^2=5^2

x^2+1/x^2-2=25

x^2+1/x^2=25-2

x^2+1/x^2=23