C1 : 2 x 3 + 3 x 2 + 2 x 3
= 2 x ( 3 + 3 + 3 )
= 2 x 9
= 18
C2 : 2 x 3 + 3 x 2 + 2 x 3
= ( 2 + 2 + 2 ) x 3
= 6 x 3
= 18
Cách 1 : 2 x 3 + 3 x 2 + 2 x 3
= ( 2 + 2 + 2 ) x 3
= 6 x 3
= 18
Study well ! >_<
2 x 3 + 3 x 2 + 2 x 3
= 2 x ( 3 + 3 + 3 )
= 2 x 9
= 18
Study well ! >_<