3x + 3y + ax + ay

Answer 1

To simplify the expression, we can combine the like terms:

3x + ax + 3y + ay

= (3 + a)x + (3 + a)y

Therefore, 3x + 3y + ax + ay simplifies to:

(3 + a)x + (3 + a)y

Answer 2

which is (3+a)(x+y)

Answer 3

Yes, that's correct!