If the sum of a number and its square is 272, What is the number? Choose the correct choice from the following choices.
A) 14 B) 16 C) 19 D) 21 E) none of these

Rationale: "explanation : let the integer be x . then , x + x 2 = 272 x 2 + x - 272 = 0 ( x + 17 ) ( x – 16 ) = 0 x = 16 answer : b"
Answer: B