Simplify \((\sqrt{6} + 2)^2 - (\sqrt{6} - 2)^2\)
If P is a set of all prime factors of 30 and Q is a set of all factors of 18 less than 10, find P \(\cap\) Q
In a class of 46 students, 22 play football and 26 play volleyball. If 3 students play both games, how many play neither?
