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✨ Jawaban Terbaik ✨

嗯...就分配律(?
f(x)=(x-1)²{2(x-1)+b}+5(x-1)+1
=(x-1)²Q(x)+r(x)
r(x)=5x-4

yi

嗚嗚謝謝你大好人 完全懂了!

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