①(x²-6x+6)/(x²-1)▪(x²+x)/(x-3)②(xy-x²)÷(x-y)/xy③[(x²-y²)/y]²÷(x²+xy)³▪[xy/(y-x)]²④[(x²+2x-3)/(9-x²)]³▪[-(x-3)/(1-x)]²
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①(x²-6x+6)/(x²-1)▪(x²+x)/(x-3)②(xy-x²)÷(x-y)/xy③[(x²-y²)/y]²
①(x²-6x+6)/(x²-1)▪(x²+x)/(x-3)②(xy-x²)÷(x-y)/xy③[(x²-y²)/y]²÷(x²+xy)³▪[xy/(y-x)]²④[(x²+2x-3)/(9-x²)]³▪[-(x-3)/(1-x)]²
①(x²-6x+6)/(x²-1)▪(x²+x)/(x-3)
②(xy-x²)÷(x-y)/xy
③[(x²-y²)/y]²÷(x²+xy)³▪[xy/(y-x)]²
④[(x²+2x-3)/(9-x²)]³▪[-(x-3)/(1-x)]²
①(x²-6x+6)/(x²-1)▪(x²+x)/(x-3)②(xy-x²)÷(x-y)/xy③[(x²-y²)/y]²÷(x²+xy)³▪[xy/(y-x)]²④[(x²+2x-3)/(9-x²)]³▪[-(x-3)/(1-x)]²
一看你就是那种不写作业的
你去菁优网吧
第一题题目肯定有问题