a) 2008 + 2008 + 2008 + 2008 - 2008 x 4
= (2008 x 4) - (2008 x 4)
= 0
b) 88 - 8 + 8 + 8 + ... + 8
= 88 - 8 x 11
= 88 - 88
= 0
A và B đều bằng o nha bn
Hok tốt
a) \(2008+2008+2008+2008-2008\times4\)
\(=\)\(\left(2008\times4\right)\)\(-\)\(\left(2008\times4\right)\)
\(=\)\(0\)
b) \(88-8+8+8+...+8\)
\(=\)\(88-8\times11\)
\(=\)\(88-88\)
\(=\)\(00\)