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phamvantohieu78
2 năm trước
Phân tích đa thức thành nhân tử(dạng đối xứng vòng quanh). 1)(a-b)(b-c)(a-c)+(a+b)(b+c)(a-c)+(a+b)(a+c)(c-b) 2)-(mab+n)(a-b)-(mbc+n)(b-c)-(mca+n)(c-a) 3)(aut+n)(u-t)+(auv+n)(v-u)+(atv+n)(t-v) 4)bc(a+d)(b-c)+ac(b+d)(c-a)+ab(c+d)(a-b)
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