744^2 + 744 - 745^2 должно получиться -744 как решит плиз?????!!!!!!!!!!!!!!
744^2+744-745^2=744(744+1)-745^2=744*745-745^2=745(744-745)=-745
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744^2+744-745^2=744(744+1)-745^2=744*745-745^2=745(744-745)=-745