Simplify: (x^3 – y^3) / (x – y).

Ax^2 - y^2

Bx^2 + xy + y^2

Cx^2 - xy + y^2

Dx^2 + y^2

Explanation

(x^3 – y^3) = (x-y)(x^2 + xy + y^2). Division gives x^2 + xy + y^2.

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