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
Algebra.Com
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) (Show Source): You can put this solution on YOUR website!
Difference of Squares!
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* 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.
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