4x 7 x 3 )= 0 July 8, 2019 16 32 64 128 4x 7x 3 0 X 3 2 4x 7 0 X x 3 4x 7 x 13 0 4x 3 2x 2 x 7 0 X 3 4x 2 6x 7 0 4x 5 x 7 với x 2 x 3 )= 0 X 7 )( x 5 2 4x 3 )= 0 4x 7 )( 2x 3 )- 8x x 4 )= 0 X 2 3 4x 7 64 0 5 x 7 = 35 4 x 7 + 3