25 x 216 + 25 x 326 + 50 x 50
= 25 x 216 + 25 x 326 + 25 x 100
= 25 x ( 216 + 326 + 100 )
= 25 x 642
= 16050
25x216+25x326+50x50
=(25x25)+(216x326)+(50x50)
=625+70416+2500
=73541
thách bạn tính 765765765757657657657+65765876586876+857466565365376537653+6546547373753754375+46486548465367354+5647657653653735