Mathematics

Mathematics

Problem

Factorise the expression (x+y)3−(x−y)3(x + y)^3 - (x - y)^3. a) 2x(3y2+x2)2x(3y^2 + x^2) b) 6x2y6x^2y c) 2y(3x2+y2)2y(3x^2 + y^2) d) 2y(3x2−y2)2y(3x^2 - y^2)

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