X 2 1 4 )( 2x 2 5 )= 0 July 8, 2019 16 32 64 128 5x 2 4 x 2 2x 1 )- 5 0 4 x 5 2 2x 1 2 10 0 Tìm x biết 5x 2 4 x 2 2x 1 )- 5 0
