3x-6/x²+4x+4÷(x-2/x+2)²-1/x-2
问题描述:
3x-6/x²+4x+4÷(x-2/x+2)²-1/x-2
答
=3(x-2)/(x+2)²×(x+2)²/(x-2)²-1/(x-2)
=3/(x-2)-1/(x-2)
=2/(x-2)