1 2x 5 2 3x 4 x 1 July 8, 2019 16 32 64 128 3x 2 7 4 x 1 )/ 5 2 2x 1 )/ 3 3 x 2 )- 5 2x 1 )+ 2 3x 4 )+ 10 =- x 3 x 2 )- 5 2x 1 )- 2 3x 4 )+ 10 0 2x 5 2 4 x 3 )( 3x tại x 1 10 16 2x 1 )/ 3 = 3x 2 )/ 4 2 x )/ 5 10/ x 2 5 / 2x - 4 1 / 6 - 3x 2x 3 x 2 3x 1 căn x 5 x 4 1