Giải phương trình
1,2x +3/2x - 3 - 3/4x - 6=2/5
2,x+1/x - 2 - 5/x+2=12/ x^2 +1
3,1/x - 1 - 7/x - 2=1/ (x - 1)(2 - x)
4,3/x +2 + 9/ (x +2)(x - 1)=1/x - 1
5,2/x^2 +2x +1 - 5/x^2 - 2x +1=3/1 - x^2
6,x+2/x+3 - x+1/x - 1=4/ (x+3)(x - 1)
7,,x +1/x -1 - 4/x + 1=3 - x^2 / 1 - x^2
8,x - 1/x +3 - x/x- 3=7x - 3/9 - x^2
9,1/x - 1 + 2x^2 - 5/x^3 - 1=4/x^2 + x +1
10,x +4/2x^2 - 5x +2 + x +1/2x^2 - 7x +3 =2x+5/2x^2 - 7x +3
11,x +1/x - 1 - x - 1/ x+1 =3x . (1 - x - 1/x + 1)
12,2x/x - 1 + 4/x^2 + 2x - 3=2x - 5/x+3
13,1/x - 1 - 7/x+2=3/x^2 +x - 2
14,x +3/x - 4 + x - 1/x - 2=2/6x - 8- x^2
15/1/x +1` + 2/x^3 - x^2 - x+1=3/1 - x^2
16,3x - 1/x -1 - 2x +5 /x+3=1 - 4/x^2 +2x - 3
17,x^2 + 2x +1/x^2 + 2x +2 + x^2 +2x + 2/x^2 +2x + 3=7/6
18,1/4x^2 - 12x +9 - 3/9 - 4x^2=4/4x^2 +12x +9
Loga
Sinh Học lớp 12
