a.phương trình mũ và logarit:
Bài1: Giải các phương trình:
1) 4. 9x-1 = 3. () 2x+1 ; 2) 4 – x - (  ) – 2x – 1 = ( )1 – 2x - 2-2x-1;
3) 4x+2 – 10.3x = 2.3x+3 – 11.22x ; 4) 8x – 3.4x – 3.2x+1 + 8 = 0;
5) 8x + 18x = 2.27x ; 6) (2 -  )x + (2 +  )x = 14;
7) 27x + 12x = 2.8x ; 8) 5.23|x-1| - 3.25 – 3x + 7 =0 ;
9) 2x+2 - |2x+1 -1| = 2x+1+1 ; 10) 25x – 2(3 – x).5x + 2x – 7 = 0 ;
11) x2.2x+1 + 2|x – 3|+2 = x2.2|x – 3|+4 + 2x – 1; 12) 8 – x.2x + 23 – x - x = 0 ;
13) (  -  )x + (  +  )x = (  )x ; 14) xx = x>0);
15) xx+1 = ( x>0) ; 16) 3-x = x+4 ;
17) (3/4)x = - 2x2 + 6x – 9 ; 18)
19) 3.16x – 2 - (3x – 10).4x – 2 + 3 – x = 0; 20)
Bài2: Giải các phương trình:
1) log 3( 4.3x – 1 ) = 2x-1; 2) lg(2x+4) =2lg|4x+7|;
3) 1 + logx2. log4(10 – x) = 2/ ( log4x); 4) log2(4x+4) = x+ log2( 2x+1 – 3);
5) log3(3x – 1).log3(3x+1 – 3) = 6; 6) lg 3lg lg 2;
7) log22x + ( x – 1)log2 x = 6 – 2x; 8) log2 x = log5 ( x+3);
9) lg( 1 – x) + lg ( 3- lg( x2 – 3x +2); 10) 2+lg(x2+2x)=log2xx + log2x2;
11) 2+ lg(x2+4x+4) = lg(x2+19) + 2lg(x+2); 12) logx-4(x3 -9x+8). log x-1(x – 4) = 3;
13) logx+1( x2+x – 6)2 = 4; 14) lg(5 – x) + 2lg1;
15) 1+ log6  log6 (x – 1)2 ; 16) 2log3(x – 2) + log3( x – 4)2 = 0;
17) lgx(x+9) + lg = 0 ; 18) log1/2 (3 – x) = 0;
19) log3(4 – x).log4 – 2x( x2 – 3x+2) =log3(4 – x);
20) log0,5xx2 – 14log16xx3 + 40 log4x 0 ;
B.bất phương trình Mũ,logarit:
Bài3: Giải các bất phương trình:
1) 2.14x + 3.49x – 4x 0; 2) 2x+2 – 2x+3 – 2x+4>5x+1 – 5x+2;
3) 4x2 + x3x2. + 8x + 12; 4) 25.2x – 10x + 5x > 25;
5) 52x+1 + 6x+1 > 30 + 5x.30x; 6)
7) (  + 2)x – 1 8) x2x+2 ;
9) 3| x- 1| - x ; 10) ( 2x – 20;
Bài4: Giải các bất phương trình:
1) log1/3 log1/3( 3 – x); 2) log5(1 – 2x) < 1 + x + 1);
3) log2 ( 1 – log9x) < 1; 4) log2x + 2logx4 – 3 0;
5) ( x2 – 4) log2x  0 ; 6) log2x 
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