求3/2x+4减6/4-x²+1/x-2
问题描述:
求3/2x+4减6/4-x²+1/x-2
答
原式=3/2(x+2)-6/(x+2)(x-2)+1/(x+2)
=[3(x-2)-6*2+2(x-2)]/2(x+2)(x-2)
=(5x-22)/(2x²-8)