2.17.12=408
4.6.21=504
8.3.62=1488
2.17.12+4.6.21+8.3.62=408+504+1488=2400
K nhé MN????????
HOk tốt!!!!!!
2.17.12+4.6.21+8.3.62
=408+504+1488
=2400
2.17.12 + 4.6.21 + 8.3.62
=408 + 504 + 1488
=2400
chúc bạn học tốt nha
24*17+24*21+24*62
=24*(17+21+62)
=24*100
=2400