SOLUTION: If an N x N square has area 32, what is the area of an (N-2) x (N+2) rectangle? Options: 31 30 28 16

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Question 858540: If an N x N square has area 32, what is the area of an (N-2) x (N+2) rectangle?
Options:
31
30
28
16
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Difference of Squares!

*---------N%5E2-4=32



* That was the first response, based on misread of the question. One of the choices IS correct.
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First solve for N, according to "N by N square has area 32", and then, use the value of N to find the indicated area. Recognize and use the difference of two square.