(X+Y)²(———)²=X四次方-2X²Y²+Y四次方
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/15 23:47:51
![(X+Y)²(———)²=X四次方-2X²Y²+Y四次方](/uploads/image/z/2094007-31-7.jpg?t=%EF%BC%88X%2BY%29%26%23178%3B%EF%BC%88%E2%80%94%E2%80%94%E2%80%94%EF%BC%89%26%23178%3B%3DX%E5%9B%9B%E6%AC%A1%E6%96%B9-2X%26%23178%3BY%26%23178%3B%2BY%E5%9B%9B%E6%AC%A1%E6%96%B9)
x){#B;RSMy0F<=ٚϦ5EB(HMR>/۞.\[ՙ@q`qFqFqF8LLl@
(X+Y)²(———)²=X四次方-2X²Y²+Y四次方
(X+Y)²(———)²=X四次方-2X²Y²+Y四次方
(X+Y)²(———)²=X四次方-2X²Y²+Y四次方
填X-y
(X+Y)²(X-y)²=
=(x^2-y^2)^2
=X^4-2X²Y²+Y^4