Ответ:
(13y+12x)(12x-13y)=(12x+13y)(12x-13y)=
=(12x)²-(13y)²=144x²-169у²
см. вложение...............
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Ответ:
(13y+12x)(12x-13y)=(12x+13y)(12x-13y)=
=(12x)²-(13y)²=144x²-169у²
Ответ:
см. вложение...............