52. The operation △ is defined by the following:

a △ b = 3 + a + b - a × b

For example, 4 △ 6 = 3 + 4 + 6 - 4 × 6 = -11. If a △ b = b △ a, then which of the following describes all the possible values of a and b?

Answer and Explanation

Your Answer is

Correct Answer is K

Explanation

According to the commutative law of addition and multiplication, it can be known that K is selected.