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SAT Numbers

Number Theory Level 1

Let \(x\) and \(y\) be integers. If \(x + y\) is odd, which of the following is true about \((x+y)^{2}+xy?\)

It is even It is odd It is even if \(x\) is even It is even if \(y\) is even It is even if \(xy\) is negative

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Excel in math and science

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by Tatiana Georgieva

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