Hint for process of elimination: Taking test values such as and and carefully using order of operations will help you eliminate most or all answers. If your own choice of values of and do not eliminate all choices, making a second choice (or in very extreme cases even a third choice) will finish off all remaining incorrect answers.
Another hint is, variables are never being multiplied with other variables, this eliminates choices D and E. Also, there is nothing in the original expression which can combine with and eliminate the number 2 from the expression. This eliminates choices A and C, leaving you with the correct answer, B.
Read on for a full solution.
Solution: You need to know that a negative sign can be distributed over parentheses because . You also need to know that the product of a positive number and a negative number is negative, and the product of two negative numbers is positive. Use that to justify the following algebra:
, which is choice B.
Work it out! Make sure you get the same answer.