Mathematics
Senior High
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これを複素数の範囲で因数分解する問題ですが、答えは2枚目です。3枚目の解答はダメですか??
2
105
✓
32-52-12
3x²–5x-12=3(x-3){x-(-₁
8
({})}
=(x-3)(3x+4) (8) (A)
1)
3(x − 3)(x + 1/2 )
3
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