the first step to solving this expression is to factor out 2 from the expression 2 (4 - (n + 4) × (-3)²) a negative base raised to an even power will equal a postive 2 (4 - (n + 4) × 3²) evaluate the power 2 (4 - (n + 4) × 9) distribute 9 through the parenthesis 2(4-(9n + 36)) when there is a "-" sign in front of the parenthesis,, change the sign of each term in the parenthesis 2(4 - 9n - 36) calculate the difference between the two numbers 2(-32 - 9n) this means that the correct answer to your question is 2(-32 - 9n). let me know if you have any further questions :)