Question

(12.2+12.4-12.6):(2+4+6+...+18+20) = ?

Answer 1

(12x2 +12x4 - 12x6) : (2+4+6+....+18+20)

=12 x (2+4-6) : (2+4+6+...+18+20)

=12 x 0 : (2+4+6+...+18+20)

= 0

Answer 2

0 nha bn

Answer 3

 = ( 12 . 2 + 12 . 4 - 12 . 6 ) : ( 2+4+6+8+...+18+20)

= 12 . ( 2+4-6 ) : ( 2+4+6+8+...+18+20 )

= 12 . 0 : ( 2+4+6+8+...+18+20 )

= 0

thích cho mình nha !

Answer 4

bằng 0 bạn nha 

Answer 5

mik k cho bn đó Oanh