Answer:
B. 4 and 5
Step-by-step explanation:
One way to do this is to take integers and square them:
42=16
52=25
Keep in mind, however, that we can also do this on the negative side:
(−4)2=16
(−5)2=25
And so if we can limit the answer to positive integers, we have one set. But if we allow negative integers, we have 2 sets.
