Question

x2+1/x2=79 find x+1/x

Answer 1

Hi!!!!! Here is our answer

x + 1/x =?????? (to find)
(x + 1/x)2= x2+ 1/x2+ 2
x2+1/x2= 79, given
So, we can also write ad
x2+1/x2+2=79+2
x2+1/x2+2=81
Then, x+1/x =√81
x+1/x=9

Hope u got it

Answer 2

Given,x²+1/x²=79

(x+1/x)²=81 ,x+1/x=9