14. The sum and the product of two numbers are 25 and 144 respectively, the difference of the number is?  Choose the correct choice from the following answers: A) 7 B) 9 C) 8 D) 5 E) 4

Rationale: x + y = 25 xy = 144 ( x - y ) 2 = ( x + y ) 2 â € “ 4 xy ( x - y ) 2 = 625 â € “ 576 = > ( x â € “ y ) = 7 answer : a
Answer: A