Question

if x+1/x=5 then x²+1/x²=_____ answer please​

Answer 1

Answer:

Here you go

Step-by-step explanation:

Given  x + 1 /x  = 5

We need to find X2+ 1 / x2

( x + 1 / x )2 = 25

= x2 + 1 / x2 + 2 (x)(1)(1/x) =25

= x2 + 1/x2 + 2 = 25

= X2 + 1 / x2 = 25 – 2

= X2+ 1 / x2=23

Hence X2+ 1 / x2= 23

Answer 2

Here is your answer mate

If x+1/x=5
Then,
x^2+1/x^2=??


Squaring both sides,
(x+1/x)2=(5)2
x^2+1/x^2+2*x*1/x=25

Since x can be cut by x,
x^2+1/x^2=25-2

Which is equal to
x^2+1/x^2=23

Welcome!!!