x+(1/x) = 3 find x^2 + (1/x^2)  Select:
A) 2.25
B) 7
C) 4.25
D) 5.25
E) 6.25

Rationale: "squaring on both sides ( x + 1 / x ) ^ 2 = 3 ^ 2 x ^ 2 + 1 / x ^ 2 = 9 - 2 x ^ 2 + 1 / x ^ 2 = 7 answer : b"
Answer: B