Question

If x + 1/x= 4, find the value of:
x^2+1/x^2​

Answer 1

Answer:

14

Step-by-step explanation:

x +(1/x)= 4

Squaring on both sides, we get

$x^{2}$ +$(1/x)^{2}$+ 2=16

Thus, $x^{2}$ + 1/$x^{2}$=16-2=14