Question

If x^2+1/x^2 =7,find the value of x+1/x​

Answer 1

Explanation:

given:-

x^2+1/x^2=7

adding 2 on both sides of above equation

x^2+1/x^2+2=9

(x)^2+2(x)(1/x)+(1/x^2)=9

(x+1/x)^2=9

taking square root on both sides

x+1/x=3,-3

Answer 2

Answer:

x + 1/x= 3...see the above picture for explanation