X 1 2 5x 5 0 July 8, 2019 16 32 64 128 X 1 )( 5x 9 2 3 x 5 0 5x 6 x 4 )- 2 x 1 )+ 5 0 X 1 mũ 2 5x 5 0 X 2 6 5x 1 5 0 X 1 )( 3x 5 )( 5x 2 )= 0
