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) 3  B) 5  C) 7  D) 11  E) 13
x + y = 25   xy = 144   (x- y)2 = (x + y)2 – 4xy   (x- y)2 = 625 – 576 =&gt; (x – y) = 7   ANSWER:7
<result>C</result>
The sum and the product of two numbers are 25 and 144 respectively, the difference of the number is?