分式x²-1分之x²+1-1-x²分之x²-2
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/30 00:13:39
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分式x²-1分之x²+1-1-x²分之x²-2
分式x²-1分之x²+1-1-x²分之x²-2
分式x²-1分之x²+1-1-x²分之x²-2
x²-1分之x²+1-1-x²分之x²-2
=x²-1分之x²+1+x²-1分之x²-2
=x²-1分之(x²+1+x²-2)
=x²-1分之2x²-1