2 2x 1 8 x 2
- 2 2x 8 1 32 2 x
- 3 2 1 2x =( 8 27 x 3
- 2 2x 1 )= 8x 2
- 2log8 2x )+ log 8 x 2 1 2x )= 4 3
- 2 2x 2 x 1 8 0
- 2x 3 x 1 )= 8 2 x 2
- X 5 4 2x 1 8 1 2 2 x
- (- 3x 2 2x 1 )(- 3x 2 x 8
- 8 x 2 )- 3 2x 1 )= 2 x 5
- 8x 2 2x 1 x 2 4x 7
- X2 2x 1 x 2 8x 12 range
- 2x 2y =- 8 x 2 y =- 1 elimination
- 2 2x 8 8.2 x 2 1 0
- 2 2x 1 15 2 x )= 8
- 2x 2 4x 8 )-( x 2 3x 1