2 2x 5 6x 4
- 2 6x 2x 5 4 0 3x 0 7 3
- 5 2x 3 )- 6x 1 2 4x 10
- 4 2x 2 )+ 6x 5 3x 2 )- 7
- 4 6x 11 )- 14 2 2x 5
- 3x 5 )( 4x 2 )=- 2x (- 6x 3
- 22x 2 5 6x 2 4
- 8x 4 2x 2 6x 5 4x 1
- 2x 2 6x 5 (- 9x 2 5x 4
- 3x 1 6x 2 2x 5 4x 13
- 3x x 4 2 2x 5 6x
- 5 2 6x 4 2x 1
- 3x 5 )( 2x 4 )= 6x 2 mx 20
- 5 6 2x 2 )=- 2 6x 5 )+ 4
- 1 2 6x 4 )= 5 2x 8
- 2x 2 6x 1 căn 4x 5