Mathematics
Senior High
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新高1です
問28が分かりません
※できれば、途中式も書いて教えてください<(_ _)>
= (b-c)a°-(6-c)(6+c)a+bc(b-c)
ニ
= (6-c){α- (6+c)a+bc}
= (6-c)(a-b)(a-c)
=ー (a-b)(b-c)(c-a)
問28 a(6°+c) + 6(c°+α)+c(a°+6°)+2abcを因数分解せよ。
問題
1
A= 3x°-4x+1, B=-4x+3, C= 2.x°+5.x-7 とする
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