化简求值:【(4X-3y/2)(4X+3y/2)4XY-Y/4(16X-9Y)】*8X X=2
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![化简求值:【(4X-3y/2)(4X+3y/2)4XY-Y/4(16X-9Y)】*8X X=2](/uploads/image/z/1073542-22-2.jpg?t=%E5%8C%96%E7%AE%80%E6%B1%82%E5%80%BC%EF%BC%9A%E3%80%90%EF%BC%884X-3y%2F2%EF%BC%89%EF%BC%884X%2B3y%2F2%EF%BC%894XY-Y%2F4%EF%BC%8816X-9Y%EF%BC%89%E3%80%91%2A8X+X%3D2)
化简求值:【(4X-3y/2)(4X+3y/2)4XY-Y/4(16X-9Y)】*8X X=2
化简求值:【(4X-3y/2)(4X+3y/2)4XY-Y/4(16X-9Y)】*8X X=2
化简求值:【(4X-3y/2)(4X+3y/2)4XY-Y/4(16X-9Y)】*8X X=2
因为x=2
所以将代数式展开可以得[(64x^3y-9xy^3)-y/4(16x-9y)]*8x
=2^9x^4y-2^3*9x^2y^3-2xy(16x-9y)
=2^13y-2^5*9y^3-2^7y+2^2*9y^2
=-288y^3+36y^2+3968y