If the sum of the two numbers is 22 and the sum of their squares is 404, then the product of the numbers is:
Choices:  A) 40  B) 44  C) 80  D) 88  E) 84
Let the numbers be x and y.   Then, (x + y) = 22 and x2 + y2 = 404   Now,   2xy = (x + y)2 - (x2 + y2)   2xy= 222 - 404 = 484 - 404= 
<gadget id="calculator">484 - 404</gadget>
<output>80</output>
80   xy= 40   40NSWER:40
<result>A</result>
If the sum of the two numbers is 22 and the sum of their squares is 404, then the product of the numbers is: