2x+4分之3-4-x的平方分之6+x-2分之1
问题描述:
2x+4分之3-4-x的平方分之6+x-2分之1
答
原式=3/2(x+2)+6/(x+2)(x-2)+1/(x-2)
=(3x-6+12+2x+4)/2(x+2)(x-2)
=(5x+10)/2(x+2)(x-2)
=5(x+2)/2(x+2)(x-2)
=5/(2x-4)