Mathematics
Senior High
Solved
この2問教えてください🙏🏻
次の (1) は式を簡単にせよ。 (2)は式を展開せよ。
(1) (x-2y)³ + (x+2y)³
(2)
(a − 1)(a ² + 1 / 2 + 1)
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