X 2 x 5 ) ( 6x 2 2x 10 July 8, 2019 16 32 64 128 X 2 x 5 )+( 6x 2 2x 10 X 3 6x 2 28x 2 2x 10 x 5 2 2x 2 5 x 2 căn x 1 6x 10
