(a²-4ab+4b²)(a²+4ab+4b²)请写出过程,

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/20 09:45:01
(a²-4ab+4b²)(a²+4ab+4b²)请写出过程,
x)HTS645IL6Ip4a(/o6iֱ۟I*ҧ;:V#Q(I" gCd!XdM0Bup@&ZLYlN] zbmC$~qAb4l}+

(a²-4ab+4b²)(a²+4ab+4b²)请写出过程,
(a²-4ab+4b²)(a²+4ab+4b²)请写出过程,

(a²-4ab+4b²)(a²+4ab+4b²)请写出过程,
(a²-4ab+4b²)(a²+4ab+4b²)
=(a-2b)²(a+2b)²
=[(a-2b)(a+2b)]²
=(a²-4b²)²
=(a²)²-2(a²)(4b²)+(4b)²
=a的4次方-8a²b²+16b的4次方

原式=(a-2b)²(a+2b)²