How do I evaluate the expression - (p+q) 2 / (-6) for p=2 andq=4

Plug in the values of p and q where you see them in the equation:

- (2+4) 2 / (-6) - Distribute the - 1

(-2-4) 2 / (-6) - Distribute the 2

(-4-8) / (-6) - Subtract what's inside the parenthesis

(-12) / (-6) - Divide

The answer is 2