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Elviraconcoli
a fost răspuns

Asociati fiecarei expresii din coloana A raspunsul corect coloana B
A)2×[14-2×(3^2-2^3)]
2×(14-2)×3^2-2^3
2×14-2×(3^2-2^3)
B)208
24
224
26

Răspuns :

2×[14-2×(3²-2³)]=
2×[14-2×(9-8)]=
2×(14-2×1)=
2x(14-2)=2x12=24

2×(14-2)×3²-2³=
2x12x9-8=24x9-8=216-8=208

2×14-2×(3²-2³)=28-2x(9-8)=28-2x1=28-2=26