6 x 2 x 56 x 4
= 12 x 56 x 4
= (12 x 4) x 56
= 48 x 56
= 2688
6 x 2 x 56 x 4
= 12 x 56 x 4
= 672 x 4
= 2688
k cho tớ nha , xin bn đó
6 x 2 x 56 x 4
= 12 x 56 x 4
= ( 12 x 4 ) x 56
= 48 x 56
= 2688
6 x 2 x 56 x 4
= 12 x 56 x 4
= ( 12 x 4 ) x 56
= 48 x 56
= 2688