Question

57(47-74)+47(74-57)

Answer 1

57.47 - 57.74 + 47.74 - 47.57

= (57.47 - 47.57) + (-57 . 74 + 47 . 74)

= 74.  (-57 + 47)

= 74 . (-10) = -740 

Answer 2

=(57.47-57.74)+(47.74-47.57)

=57.47-57.74+47.74-47.57

=(57.47-47.57)-(57.74-74.47)

=0-74(57-47)

=0-74.10

=0-740

=-740

Answer 3

ta se lam nhu sau :

= 57 . 47 - 57 .74 + 47 . 74 - 47 .57

= (57.47-47.57) + 74 . ( 47-57)

= 0 + 74 . (-10)

= - 740

tick minh nha

Answer 4

- 740 

tich mik nha các bạn