5 x 2 4 x 3 x 6
- X 2 4 )( 5x 3 x 6
- 1 x 4 2 x 5 3 x 6
- 5 x 2 )+ x 6 x 3 )- 4x
- X 4 x 3 5x 2 x 6 0
- X 4 x 3 5x 2 3x 6
- X 4 x 3 5x 2 3x 6 0
- X 2 3 x 4 5 x 6 21
- 7 x 4 )- 2 x 3 5 x ))= 2 3 x 6
- 5 x 4 x 3 6 9 x 4 6x 2 16
- 3x 5 x 2 )= 4 x 3 )+ 6
- 4x 5 2 x )= 3 x 6 )- 16
- X 5 2 3 2x 4 x 7 x 6
- X 5 x 2 4x 4 và x 3x 6
- X 2 5x 4 2x 3 x 6 =- 30
- X 4 3x 3 5x 6 )( x 2 1