Question

Tính nhanh :

(-98).(1-246)-246.98

Giúp mình với nhé, giải ra nha.Thanks nhiều.

Answer 1

= (-98).(-245)-246.98

= 98.245-246.98

= 98.(245-246)

= 98.(-1)

= -98

Answer 2

=(-98.1)-(-98.246)-246.98

=-98+98.246-246.98

=-98

Answer 3

(-98) . ( 1- 246 ) - 246 . 98

= ( -98 ) . 1 - ( -98 ) . 246 - 246 . 98

= ( -98 ) - [ ( -98 ) . 246 + 246 . 98 ]

= ( -98 ) - 246 .  [ ( -98 ) + 98 ]

=( - 98 ) - 246 . 0

= ( -98 ) - 0

= ( -98 ) 

Answer 4

(-98).(1-246)-246.98=

(-98.1).(-98.246-256.98)=

(-98.1)-0=-98

tick nha