Mathematics
Senior High
(3)で因数定理を使って1と-1を代入したらどちらも0になりました代入して成り立つ数が1つのときと2つのときの見分け方はありますか?
124 次の式を因数分解せよ。
B.
1981-08114-3-313-41
*(1) 2x³+x²+x-1 (2) 2x³+x²-x+3
x+3x³-5x²-3x+4
256 - 192 -80 12 + 4
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