因式分解(x-y)²-4(x+y)²=
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/15 22:41:19
因式分解(x-y)²-4(x+y)²=
因式分解(x-y)²-4(x+y)²=
因式分解(x-y)²-4(x+y)²=
很高兴为你解答,答案如下:
(x-y)²-4(x+y)²=(x-y)²-[2(x+y)]²=[(x-y)-2(x+y)][(x-y)+2(x+y)]=(x-y-2x-2y)(x-y+2x+2y)=-(3x+y)(x+3y)
(x-y)²-4(x+y)²
=【(x-y)+2(x+y)】【(x-y)-2(x+y)】
=(3x+y)(-x-3y)
=-(3x+y)(x+3y)
(*^__^* *^__^* *^__^*)你好,能够帮助你是我最大的快乐!如有疑问请追问,
如果您认可我的回答。请点击下面的【选为满意回答】按钮,谢谢!!!...
全部展开
(x-y)²-4(x+y)²
=【(x-y)+2(x+y)】【(x-y)-2(x+y)】
=(3x+y)(-x-3y)
=-(3x+y)(x+3y)
(*^__^* *^__^* *^__^*)你好,能够帮助你是我最大的快乐!如有疑问请追问,
如果您认可我的回答。请点击下面的【选为满意回答】按钮,谢谢!!!
收起
=(X+Y)(X-Y)-4(X+Y)(X+Y)=(X+Y)(X-Y-4X-4Y)=(X+Y)(-3X-5Y)=-(X+Y)(3X+5Y)