Question

tính nhanh : -168+(+72).(-168)+(-168).(+27)

Answer 1

-168 + ( + 72 ) . ( - 168 ) + ( - 168 ) . ( + 27 )

= - 168 . 1 + 72 . ( - 168 ) + ( - 168 ) . 27

= - 168 . ( 1 + 72 + 27 )

= - 168 . 100

= - 16800

Answer 2

 ( -168 ) + 72 x ( -168 ) + ( -168 ) x 27 

=  ....

k mình

k lại

Answer 3

-168 + (+72) . (-168) + (-168) . (+27)

= -168 + 72 . (-168) + (-168) . 27

= -168 . (72 + 1 + 27)

= -168 . 100

= -16800