TL :
2021 x 45 + 2021 x 54 + 2021
= 2021 x 45 + 2021 x 54 + 2021 x 1
= 2021 x ( 45 + 54 + 1 )
= 2021 x 100
= 202100
T I C K cho tui !
~HT~
2021 x 45 + 2021 x 54 + 2021
= 2021 x ( 45 + 54 + 1 )
= 2021 x 100
= 202100
HT và $$$
2021 x 45 + 2021 x 54 + 2021
= 2021 x 45 + 2021 x 54 + 2021 x 1
= 2021 x (45 + 54 + 1)
= 2021 x 100
= 202100
câu trả lòi là202100
Tl :
2021 x 45 + 2021 x 54 + 2021
= 2021 x 45 + 2021 x 54 + 2021 x 1
= 2021 x ( 45 + 54 + 1 )
= 2021 x 100
= 202100
T I C K CHO TUI NHA
~HT~