Question

3- Prove that square of any positive integers of
form 5q+1 is of some form?​

Answer 1

Answer:

a^2 = 5q + 4. Lets also consider q to be equal to 5m^2 + 8m + 3. Hence, the square of any positive integer is of the form 5q or 5q + 1 or 51 + 4.

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