4x 2 1 =( 2x 1 )( 3x 5 July 8, 2019 16 32 64 128 4x 1 3 2x 1 2 3x 7 5 6 Giải phương trình 4x 2 1 =( 2x 1 )( 3x 5 Express 6 4x 2 8x 5 3x 1 2x 1 Lim x tends to 1 2x 1 3x 2 4x 5 2x 1 3 4x 1 2 3x 5 5 19 10 2x 1 )( 4x 2 2x 1 )- 2x 2 2 3x )+ 5x 2 1 4x 4 1 2x 2 5 1 3x 2 4 1/2 + 1 1/3
