9(x-y)²-4(x+y)²因式分解
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/10 17:41:36
![9(x-y)²-4(x+y)²因式分解](/uploads/image/z/1002631-31-1.jpg?t=9%EF%BC%88x%EF%BC%8Dy%EF%BC%89%26%23178%3B%EF%BC%8D4%EF%BC%88x%EF%BC%8By%EF%BC%89%26%23178%3B%E5%9B%A0%E5%BC%8F%E5%88%86%E8%A7%A3)
xjA_D*fMn-J)76k7 Q@B/:
NL--f8Uޮ/ݪ E|c~k.\ߖ]]=j_$c_aw۬nez'CRAt59n>l7oQ҃MbQ?GU]flMߍ}(+o}^5t %)mfʘO_tȼtFZgDNJ
X 6:E ;ebit>HBTۘ\~,hs{.@,FwFot>UKϭx.mFZ͓g;b@.*} - "0`x$78˴NRc4`,QZR$`g;؉#\298b
9(x-y)²-4(x+y)²因式分解
9(x-y)²-4(x+y)²因式分解
9(x-y)²-4(x+y)²因式分解
原式=[3(x-y)+2(x+y)][3(x-y)-2(x+y)]
=(5x-y)(x-5y)
9(x-y)²-4(x+y)²
=[3(x-y)+2(x+y)]*[3(x-y)-2(x+y)]
=[3x-3y+2x+2y]*[3x-3y-2x-2y]
=(5x-y)(x-5y)