Mathematics
Senior High
Solved
展開する問題です。できるだけベストアンサーにします。
練習次の式を展開せよ。
3
(1) (x+2)(x²–2x+4)
(3) (x+3y)(x²-3xy+9y²)
BEA+
(2) (x-3)(x²+3x+9)
(4) (2x-3a)(4x²+6ax+9a²)
に使用する装八級) whe
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