(2b+c-4a)(c-2b-4a)谢谢拉````

来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/25 07:37:46
(2b+c-4a)(c-2b-4a)谢谢拉````(2b+c-4a)(c-2b-4a)谢谢拉````(2b+c-4a)(c-2b-4a)谢谢拉````(2b+c-4a)(c-2b-4a)=[(c-4a

(2b+c-4a)(c-2b-4a)谢谢拉````
(2b+c-4a)(c-2b-4a)
谢谢拉````

(2b+c-4a)(c-2b-4a)谢谢拉````
(2b+c-4a)(c-2b-4a)
=[(c-4a)+2b][(c-4a)-2b]
=(c-4a)^2-(2b)^2
=c^2-8ac+16a^2-4b^2.

(2b+c-4a)(c-2b-4a)
=[(c-4a)+2b][(c-4a)-2b]
=(c-4a)^2-(2b)^2
=c^2-8ac+16a^2-4b^2

(2b+c-4a)(c-2b-4a)=[(c-4a)+2b][(c-4a)-2b]=(c-4a)^2-4b^2=c^2-8ac+16a^2-4b^2
祝你成功!

(2b+c-4a)(c-2b-4a)
= ( c-4a +2b ) * (c-4a -2b)
=(c-4a)^2 - 4b^2
=c^2 +16a^2 -8ac -4b^2

(2b+c-4a)(c-2b-4a)
=((c-4a)+2b)((c-4a)-2b)
=(c-4a)^2-(2b)^2
=c^2-8ac+16a^2-4b^2

(2b+c-4a)(c-2b-4a)
=[(c-4a)+2b]*[(c-4a)-2b]
=(c-4a)^2-4b^2
=16a^2-8ac-4b^2+c^2

(c-4a)^2-4b^2=c^2-8ac+16a^2-ab^2