Ответ:
(5*3−9*0,1)⋅(5*3+9*0,1)−25*3₂=(15-0.9)*(15+0.9)-225=14.1*15.9-225=224.19-225=-0.81
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Ответ:
(5*3−9*0,1)⋅(5*3+9*0,1)−25*3₂=(15-0.9)*(15+0.9)-225=14.1*15.9-225=224.19-225=-0.81