Answer:
15 and/or 27
Explanation:
since 13 is a prime number xy can either =13×1 or 1×13
So...x+y2
13+1(2)
13+2=15
Or
x+y2
1+13(2)
1+26=27
Since the question mentioned ¨ positive integers,¨ I´m guessing there is a possibility of two answers.
If not, tell what you get for an automated answer, explanation, and/or diagram.
Hope this helps!!