Mathematics
Senior High
Solved
この計算のどこが間違えているか教えてください
赤枠のところの正答は½でした
(3) y=3(x+1)(x-2)
=3(x-x-2)
=3x2-3x-6
=3((x-1)2-12-6
3 (x-1)2-13-6
=3(x
お早
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