杭州交通信息网党务公文格式:一道数学题 急用
来源：百度文库 编辑：杭州交通信息网 时间：2024/04/28 22:43:37
计算：
(x-1/2y-1)(x-1/2y+1)(x-1/2y-1)^2 (要步骤)
(x-1/2y-1)(x-1/2y+1)(x-1/2y-1)^2 (要步骤)
=(x-1)^4/(2y-1)^2(4y-1)
=(x^4-4x^3+6x^2-4x+1)/(4y^2-4y+1)(4y-1)
=(x^4-4x^3+6x^2-4x+1)/(16y^3-20y^2+8y-1)
=(x-1)^4/(2y-1)^2(4y-1)
=(x^4-4x^3+6x^2-4x+1)/(4y^2-4y+1)(4y-1)
=(x^4-4x^3+6x^2-4x+1)/(16y^3-20y^2+8y-1)
=(x-1)^4/(2y-1)^2(4y-1)
=(x^4-4x^3+6x^2-4x+1)/(4y^2-4y+1)(4y-1)
=(x^4-4x^3+6x^2-4x+1)/(16y^3-20y^2+8y-1)
就是这个了绝对没错.