The product of the squares of two positive integers is 9. How many pairs of positive integers satisfy this condition?
Choose the correct choice.
A) 0
B) 1
C) 2
D) 3
E) 4
Ans:B - 1 pairs   (xˆ2)(yˆ2) = 9 [square root both sides]   xy = 3   3 = 1x3, 3x1   Cancel the repeats   This leaves us with exactly 1 options.   Hence, 1
<result>B</result>
The product of the squares of two positive integers is 9. How many pairs of positive integers satisfy this condition?