x²-4y²分之2x+2y-x分之2+1
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/22 02:04:16
![x²-4y²分之2x+2y-x分之2+1](/uploads/image/z/1614758-14-8.jpg?t=x%26%23178%3B-4y%26%23178%3B%E5%88%86%E4%B9%8B2x%2B2y-x%E5%88%86%E4%B9%8B2%2B1)
x²-4y²分之2x+2y-x分之2+1
x²-4y²分之2x+2y-x分之2+1
x²-4y²分之2x+2y-x分之2+1
x²-4y²分之2x+2y-x分之2+1
=[(x-2y)(x+2y)]分之2x+[(2y-x)(2y+x)]分之2(2y+x)+1
=[(x-2y)(x+2y)]分之[2x-2(2y+x)]+1
=[(x-2y)(x+2y)]分之[-4y]+1
=[(x-2y)(x+2y)]分之[x²-4y²-4y]