6. What is the value of the expression (x - y)2 when x = 8 and y = -11?
O A. 361
OB.-9
О С. 9
O D. -57
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A. 361 is the right answer
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x-y = 8-(-11) = 8+11 = 19
(x-y)^2 = (19)^2 = 361
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