(3n+4m)2-(2n-m)(5n-16m)​

Question

(3n+4m)2-(2n-m)(5n-16m)​

Answer 1

Пошаговое объяснение:

(3n+4m)²-(2n-m)(5n-16m)=

=9n²+24nm+16m²-10n²+32nm+5nm-80m²=

=-n²+61nm-64m²

Comments

спасибо бро