Автор - arina211017

(х-10) (х+10)
(4-а) (4+а)
(7х-1) (7х+1)
(8а-3b) (8a+3b)

Ответ

Автор - nikabagatyr

Х²-100

16-а²

49х²-1

64а²-9b²

Ответы и объяснения

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