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✨ Best Answer ✨

24a³-81b³=3(8a³-27b³)=3(2a-3b)(4a²+6ab+9b²)

xの6乗-1
=(x³-1)(x³+1)
=(x-1)(x+1)(x²+x+1) (x²-x+1)

xの6乗-1
=(x²-1)(x⁴+x²+1)
=(x-1)(x+1) [(x²+1)² -x²]
=(x-1)(x+1)(x²+x+1) (x²-x+1)

因数分解
めがね

ありがとございます!

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