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Calculaţi: 1,8²+3×[4,6-2,5×(1-0,7)]

Răspuns :

1.8^2+3×[4.6-2.5×(1-0.7)]= 1.8^2+3×[4.6-2.5×0.3]= 1.8^2+3×[4.6-0.75]= 1.8^2+3×3.85= 1.8^2+11.55= 3.24+11.55=14.79