Question

Use Euclid's division lemma to show that the square of any positive integer is of the form 5n or 5n+1 or 5n+4 where n is a whole number

Answer 1

Step-by-step explanation:

Given, p(x)=x+3

Therefore, p(−x)=−x+3

Now, p(x)+p(−x)=(x+3)+(−x+3)=6

Option D is correct.

Answer 2

Answer:

5n+1 is a whole number...