Multiply, and then simplify if possible. Assume all variables represent positive real numbers.( - x)( + x)

A. y - x2
B. y - 2x - x2
C. y - x
D. y + 2x - x2

Answer: A

Mathematics

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C.
D.

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A. (6, 0); x = 6 B. (6, 0); x = -6 C. (0, 6); y = -6 D. (6, 0); y = -6

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Simplify.

A.
B.
C. - 
D. - 

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