2017年伦敦大楼火灾:(x-2y)^2*(x^2+2xy+4y^2)^2
来源:百度文库 编辑:高考问答 时间:2024/05/18 17:09:29
写出过程~
(x-2y)^2*(x^2+2xy+4y^2)^2
=[(x-2y)*(x^2+2xy+4y^2)]^2
=(x^3-8y^3)^2
=x^6-16(xy)^3+64y^6
(x-2y)^2*(x^2+2xy+4y^2)^2
=[(x-2y)*(x^2+2xy+4y^2)]^2
=(x^3-8y^3)^2
=x^6-16(xy)^3+64y^6