SOLUTION: The area of a square with side lengths k is 36 square units squared greater than the area of a rectangle with dimensions (k-7) and (k+8). Determine the area of the square.

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Question 678295: The area of a square with side lengths k is 36 square units squared greater than the area of a rectangle with dimensions (k-7) and (k+8). Determine the area of the square.
Answer by pmatei(79) About Me  (Show Source):
You can put this solution on YOUR website!
k%5E2+=+36%2B%28k-7%29%28k%2B8%29
k%5E2+=+36+%2B+k%5E2+%2B+k+-+56
0+=+k+-+20
k+=+20
The area of the square is 400 square units.