SOLUTION: If X and Y are integers, what is always even? A) x+y /2 B) 2(x+y/2) C)2(x+y) D) x^2 +y^2

Question 1143005: If X and Y are integers, what is always even?
A) x+y /2
B) 2(x+y/2)
C)2(x+y)
D) x^2 +y^2
Found 2 solutions by Theo, greenestamps:
Answer by Theo(13342) (Show Source): You can put this solution on YOUR website!
any integer multiplied by 2 is always even.

if x and y are integers, then x + y is also an integer, therefore 2 * (x + y) will always be even.

Answer by greenestamps(13200) (Show Source): You can put this solution on YOUR website!

Choose a few combinations of even and/or odd integers and evaluate each of the given expressions; then see which expression always gives an even answer.

Then think about WHY that expression always gives an even answer while the others don't.
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