Mathematics
Senior High
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星のついているところを教えて欲しいです😭
20
5. 次の式を因数分解せよ。
(1) x³-2x²y+xy-2y²
2x²+8ax+6a²−x+a−1
x²+2xy-3y²-5x+y+4
(a+b+c)(ab+bc+ca)—abc
→ p.20, 21
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