Question

[mai thái tâm]

-29 * ( 85 -47) -85 * (47-29)

-167 * (67 -34) - 67 * (34 -467)

Answer 1

[Q Player]

a)-2632

b)23500

Answer 2

[Hiền Nekk^^]

(-29).(85-47)-85.(47-29)

=(-29).85+29.47-85.47+85.29

=85.[(-29)+29]+47.(29-85)

=85.0+47.(-56)

=0+(-2632)

(-167) . (67-34) - 67 . ( 34- 167)

=-167.67+167.34 - 67.34+67.167

=167.34-67.34

=34.(167-67)

=34.100=3400