Jawabanmu

2014-09-12T17:55:04+07:00
1/x-2+2/x+2 = 1/x + 2/x - 2 +2
                   =3/x
2014-09-12T18:01:37+07:00
X + 2 + 2x-4 
------------------        =  4
    x² - 4