If x + y = 20 and P = xy, then what is the maximum value of P?

1.	If x + y = 20 and P = xy, then what is the maximum value of P?
A.	100
B.	96
C.	84
D.	50
Answer» B. 96

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If x + y = 20 and P = xy, then what is the maximum value of P?

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