it only valids when b=a+4.

bbcc2001 · 2024-04-29 12:53:31Z

it only valids when b=a+4.簡介

來源: bbcc2001 於 2024-04-29 12:53:31 [檔案] [舊帖] [給我悄悄話] 閱讀數 : (0 bytes)

回答: a+b=a(1+b) 由 kingfish2010 於 2024-04-29 12:49:37

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