Question

If x+ 1/x=4 find the value of x²+1/x²​

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer: 14

Step-by-step explanation:

Given.

$x+ 1/x=4$

$(x+1/x)^2 = 4^2$

$x^2 + 1/x^2 + 2 (x)(1/x) = 4^2$

$x^2 + 1/x^2 +2 (x/x) = 4*4\\x^2+ 1/x^2 +2 = 16\\x^2 + 1/x^2 = 16-2\\x^2 + 1/x^2 = 14$