X 7 )( x 2 )= 36 July 8, 2019 16 32 64 128 X 7 )( x 2 36 )= 0 X 7 x 2 5 4 36 x 2 4 9x 7 )/ 2 x x 2 )/ 7 36 X 7 x 2 4 x 36 7 x 365 x 2 X 6 )( 2x 7 )= x 2 12x 36 X 3 x 2 7 2 36x − x 6x 7 )( x 2 − 36 )= 0 X 7 x 6 36 x 2 6x X 3 x 2 7 2 36x chia hết cho 210 2 x 22 7 x 36