化简 x²y-3xy²+2yx²-y²x
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/08 16:20:29
![化简 x²y-3xy²+2yx²-y²x](/uploads/image/z/2565510-6-0.jpg?t=%E5%8C%96%E7%AE%80+x%26%23178%3By-3xy%26%23178%3B%2B2yx%26%23178%3B-y%26%23178%3Bx)
x){3
5eCsJ]JSۨ*I*'M~
9vCm{:+*5tu
5+"jlA&@<;u6`!ӣa
fL. $f
化简 x²y-3xy²+2yx²-y²x
化简 x²y-3xy²+2yx²-y²x
化简 x²y-3xy²+2yx²-y²x
原式=(1+2)x^2y+(-3-1)xY^2
=3x^2y-4xy^2
x²y-3xy²+2yx²-y²x
=(1+2)x²y-(3+1)xy²
=3x²y-4xy²