Question

If a and b are two odd prime numbers, show that a square - b square is composite

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Answer 1

Answer:

So, we can say that a2−b2 is a composite number. Hence, we can say that if a and b are two odd primes, show that (a2−b2) is composite.

Step-by-step explanation:

Note: Students may have a misconception that the difference between two odd numbers is an equal odd number and the sum of two odd numbers are equal to an odd number.