数学题求解(3x-2y)(9x^2+6xy+4y^2)(27x^3+8y^3)

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数学题求解(3x-2y)(9x^2+6xy+4y^2)(27x^3+8y^3)
数学题求解(3x-2y)(9x^2+6xy+4y^2)(27x^3+8y^3)

数学题求解(3x-2y)(9x^2+6xy+4y^2)(27x^3+8y^3)
(3x-2y)(9x^2+6xy+4y^2)(27x^3+8y^3)
=【(3x-2y)(9x^2+6xy+4y^2)】(27x^3+8y^3)
=(27x^3-8y^3)(27x^3+8y^3)
=729x^6-64y^6