6xy^2(1/2x - 2/3xy) =
= 6xy^2(1/2x) -6xy^2 xx (2/3xy) =
= (6 xx 1/2) (x xx x)(y^2) – (6 xx 2/3)(x xx x) (y^2 xx y) =
= 3x^2y^2 – 4x^2y^3

Question

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