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a fost răspuns

Folosind factorul comun,calculati:
A) 12x89+78x12=
2956x1995-1995x2955
123x389+123x11-50x123
Va rog din suflet dau 20 puncte+coronitaa+multumeesc

Răspuns :

Robertstinghe
12x(89+78)=
12x167=
2004

1995x(2956-2955)=
1995x1=
1995

123x(389+11-50)=
123x350=
43050
GabitzaEu
12×89+78×12=
12×(89+78)=
12×167=2004
2956×1995-1995×2955=
1995×(2956-2955)=
1995×1=1995
123×389+123×11-50×123=
123×(389+11-50)=
123×(400-50)=
123×350=43050
Sper ca te-am ajuta pwp!!

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