化简分式,2x-4/x的2次方-4
问题描述:
化简分式,2x-4/x的2次方-4
答
2x-4/x²-4
=2(x-2)/(x+2)(x-2)
=2/x+2
化简分式,2x-4/x的2次方-4
2x-4/x²-4
=2(x-2)/(x+2)(x-2)
=2/x+2