Question

[linh mai]

(1+2+3+4+...+2018)*(8*9-9*8) cho mk ket qua vs mk can gap

Answer 1

[Gấu Xayda]

= (1+2+3+4+.....+2018)* (72-72)

=(1+2+3+4+5+......+2018)*0

=0

Answer 2

[Nguyễn Thanh Hiền]

   (1 + 2 + 3 + ... + 2018) * (8 * 9 - 9 * 8)

= (1 + 2 + 3 + ... + 2018) * (72 - 72)

= (1 + 2 + 3 + ... + 2018) * 0 

= 0