If x + (1/x) = 5, what is the value of W= x^2 + (1/x)^2? Choose one
A) W=21  B) W=22  C) W=23  D) W=24  E) 27
Squaring on both sides,   x^2 + (1/x)^2 + 2(x)(1/x) = 5^2   x^2 + (1 /x)^2 = 23   Answer: W=23
<result>C</result>
If x + (1/x) = 5, what is the value of W= x^2 + (1/x)^2?