Mathematics
Senior High
恒等式の問題です。
数値代入法を使用した解き方を教えて欲しいです 🙇♀️
次の等式がxについての恒等式となるように,定数a,b,cの値を定めよ。
(1) a(x+1)²+b(x+1)+c= 2x²+3x+4
(2)a(x-1)(x-2)+b(x-2)(x-3)+c(x-3)(x-1)
= 3x + 5
p. 62 Training32 (1) (2)
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