Question

if (x-1÷x)^2=(√5)^2 find the value​

Answer 1

Step-by-step explanation:

(x-1/x)^2 =5

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

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

x^2+(1/x)^2=7