👤
a fost răspuns

Calculati:
a). (-1)(-2)(-3);




(-2)(+3)(-6);






(-5)(-3)(+3);





0×(-2)×2;







b)(-2)(-5)(+6)(+2);





(-1)(-3)(-5)(+6);








(-2)(-3)(+6)(+5);







(-1)(+1)(-1)(+1); Coronita cel mai bun raspuns

Răspuns :

Emilia17
a) (-1)(-2)(-3)=2(-3)=-6
    (-2)(+3)(-6)=(-6)(-6)=6*6=36
    (-5)(-3)(+3)=15x3=45
    0x(-2)x2=0

b) (-2)(-5)(+6)(+2)=10x12=120
    (-1)(-3)(-5)(+6)=3(-30)= -90
    (-2)(-3)(+6)(+5)=6x30=180
    (-1)(+1)(-1)(+1)=(-1)(-1)=1

Sper ca te-am ajutat ! :)
1. a)
( -1 ) ( -2 ) ( -3 ) = ( + 2) ( -3 ) = -6
( -2 ) ( + 3 ) ( - 6 ) = ( -6 ) ( -6 ) = +36
( - 5 ) ( - 3 ) ( + 3 ) = ( + 15 ) ( + 3 ) = + 45
0 x ( -2 ) x 2 = 0
b)
( - 2 ) ( -5 ) ( + 6 ) ( + 2 ) = ( + 10 ) ( + 6 ) ( + 2 ) = ( + 60 ) ( + 2 ) = + 120
( -1 ) ( -3 ) ( - 5 ) ( + 6 ) = ( + 3 ) ( -5 ) ( + 6 ) = ( - 15 ) ( + 6 ) = - 90
( -2 ) ( -3 ) ( + 6 ) ( + 5 ) = ( + 6 ) ( + 6 ) ( + 5 ) = ( + 36 ) ( + 5 ) = + 180
( -1 ) ( + 1 ) ( - 1 ) ( + 1 ) = ( - 1 ) ( -1 ) ( + 1 ) = ( + 1 ) ( + 1 ) = + 1

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