Mathematics

Mathematics

Problem

Identify the correct expansion of (x−y)2(x - y)^2. a) x2+2xy+y2x^{2} + 2xy + y^{2} b) x2+y2x^{2} + y^{2} c) x2−2xy+y2x^{2} - 2xy + y^{2} d) x2−y2x^{2} - y^{2}

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