The building code in a certain town requires that a house be at least 11 ft from the boundaries of the lot. The buildable area (or building envelope) for the rectangular lot shown in the figure is given by
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A = (x - 22)(y - 22)
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Expand to express A as a polynomial in x and y.
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A. xy + 22x + 22y - 484
B. xy - 22x - 22y + 539
C. xy - 22x - 22y + 484
D. xy - 11x + 11y - 454
E. xy - 11x - 11y + 484
Answer: C
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Write the quotient in the form a + bi.
A. - 
+ 
i
B. 
+ 
i
C. - 
- 
i
D. 
+ 
i