SOLUTION: If x and y are negative integers, which of the following expressions must be negative ? (A) xy (B) x + y (C) x – y (D) x^2 + y^2 (E) x^2 - y^2

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Question 253781: If x and y are negative integers, which of the following expressions must be negative ?
(A) xy (B) x + y (C) x – y (D) x^2 + y^2 (E) x^2 - y^2

Answer by palanisamy(496) About Me  (Show Source):
You can put this solution on YOUR website!
If x and y are negative integers, then (x+y) is also a negative integer