Bài 1
a,(2x+1)2/5 - (x-1)2/3=7x2-14x-5/15
b,(x+10)(x+4)/12 - (x-4)(2-x)/4=(x+10)(x-2)/3
c,(x-2)2/3 - (2x-3)(2x+3)/8 + (x-4)2/6=0
Bài 2
a,x-23/24 + x-23/25=x-23/26 + x-23/27
b,(x+2/98 + 1)+(x+3/97 + 1)=(x+4/96 + 1)+(x+5/95 + 1)
c,x+1/2004 + x+2/2003=x+3/2002 + x+4/2001
d,201-x/99 + 203-x/97=205-x/95 + 3=0
e,x-45/55 + x-47/53=x-55/45 + x-53/47
f,x+1/9 + x+2/8=x+3/7 + x+4/6
g,x+2/98 +x+4/96=x+6/94 + x+8/92
h,2-x/2002 - 1=1-x/2003 - x/2004
i,x2-10x-29/1971 + x2-10x -27/1973=x2-10x-1971/29 + x2-10x-1973/27
Hơi khó hiểu thông cảm ạ