(a²-6)²-6(a²-6)+9=
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/07 01:28:27
(a²-6)²-6(a²-6)+9=
(a²-6)²-6(a²-6)+9=
(a²-6)²-6(a²-6)+9=
(a²-6)²-6(a²-6)+9=(a²-6-3)²=(a²-9)²=(a-3)²(a+3)²
(a²-6)²-6(a²-6)+9=
(a²-6)²-6(a²-6)+9=
(a²-6)²-6(a²-6)+9=
(a²-6)²-6(a²-6)+9=(a²-6-3)²=(a²-9)²=(a-3)²(a+3)²