分式分解:4y2-x2/-x2-4y2+4xy

来源:学生作业帮助网 编辑:作业帮 时间:2024/07/09 03:16:59
分式分解:4y2-x2/-x2-4y2+4xy
x){tO?||=L*t+X6I*'B~ T@q 8LHS¬saF@RBA@2 <;l.0ԭѺnQ,DV*Fvn$Zq

分式分解:4y2-x2/-x2-4y2+4xy
分式分解:4y2-x2/-x2-4y2+4xy

分式分解:4y2-x2/-x2-4y2+4xy
4y^2-x^2/-x^2-4y^2+4xy
=(x^2-4y^2)/(x^2-4xy+4y^2)
=(x+2y)(x-2y)/(x-2y)^2
=x+2y/x-2y

4y2-x2/-x2-4y2+4xy
=(2y-x)(2y+x)/[-(2y-x)^2]
=-(2y+x)/(2y-x)
=(x+2y)/(x-2y)