x²+6x+5分之x²+7x+10乘x²+4x+4分之x的3次方+1乘x-2分之x²-x+1化简

问题描述:

x²+6x+5分之x²+7x+10乘x²+4x+4分之x的3次方+1乘x-2分之x²-x+1化简

=(x-2)/(x+2)

x²+6x+5分之x²+7x+10×x²+4x+4分之x的3次方+1÷x-2分之x²-x+1
=[(x+2)(x+5)/(x+1)(x+5)]×[(x+1)(x²-x+1)/(x+2)²]÷[(x²-x+1)/(x-2)]
=(x-2)/(x+2)