计算:a-6a^2b^3+9a^3b^6 2acd-c^2d-ad^2计算:(1).a-6a^2b^3+9a^3b^6 (2).2acd-c^2a-ad^2

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/24 21:42:32
计算:a-6a^2b^3+9a^3b^62acd-c^2d-ad^2计算:(1).a-6a^2b^3+9a^3b^6(2).2acd-c^2a-ad^2计算:a-6a^2b^3+9a^3b^62acd

计算:a-6a^2b^3+9a^3b^6 2acd-c^2d-ad^2计算:(1).a-6a^2b^3+9a^3b^6 (2).2acd-c^2a-ad^2
计算:a-6a^2b^3+9a^3b^6 2acd-c^2d-ad^2
计算:(1).a-6a^2b^3+9a^3b^6 (2).2acd-c^2a-ad^2

计算:a-6a^2b^3+9a^3b^6 2acd-c^2d-ad^2计算:(1).a-6a^2b^3+9a^3b^6 (2).2acd-c^2a-ad^2
a-6a^2b^3+9a^3b^6
=a(9a^2b^6-6ab^6+1)
=a(3ab^3+1)^2 完全平方公式
2acd-c^2a-ad^2
=-a(c^2-2cd+d^2)
=-a(c-d)2

a-6a^2b^3+9a^3b^6
=a(9a^2b^6-6ab^6+1)
=a(3ab^3-1)^2
2acd-c^2a-ad^2
=-a(c^2-2cd+d^2)
=-a(c-d)2