问题:
因式分解:
(1)-8ax 2+16axy-8ay 2
(2)(a 2+1) 2- 4a 2
因式分解:
(1)-8ax 2+16axy-8ay 2
(2)(a 2+1) 2- 4a 2
(1)-8ax 2+16axy-8ay 2
(2)(a 2+1) 2- 4a 2
参考答案: