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Vincen
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\(x,y\) are positive integers. Find the number of even factors of \(4x^2.\)
I. \(x^3-y^3+3xy\) is odd and \(x\) is a prime.
II. \(x^{x+y}\cdot y^{3x}+x^{3y}\) is odd.
Answer: C
Source: e-GMAT
I. \(x^3-y^3+3xy\) is odd and \(x\) is a prime.
II. \(x^{x+y}\cdot y^{3x}+x^{3y}\) is odd.
Answer: C
Source: e-GMAT
