先化简,再求值:(1+x+1/1)÷x²-1/1-(x-2),其中x=-3/2
问题描述:
先化简,再求值:(1+x+1/1)÷x²-1/1-(x-2),其中x=-3/2
答
(1+x+1/1)÷x²-1/1-(x-2)
=x²-1+x-1-x+2
=x²
=(-3/2)²
=9/4