2x 2 1 4x 2 10x 5 July 8, 2019 16 32 64 128 5x 4x 2 2x 1 )- 2x 10x 2 5x 2 A 5x 4x 2 2x 1 )- 2x 10x 2 5x 2 với x 15 5x 4x 2 2x 1 )- 2x 10x 2 5x 2 )=- 36 2x 10
