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)](/uploads/image/z/18943217-17-7.jpg?t=%E6%95%B0%E5%AD%A6%E9%A2%98%E6%B1%82%E8%A7%A3%283x-2y%29%289x%5E2%2B6xy%2B4y%5E2%29%2827x%5E3%2B8y%5E3%29)
(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
=【(3x-2y)(9x^2+6xy+4y^2)】(27x^3+8y^3)
=(27x^3-8y^3)(27x^3+8y^3)
=729x^6-64y^6
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