因式分解：（x²-y²）²-8（x²+y²）+16. 谢谢!
问题描述：
因式分解：（x²-y²）²-8（x²+y²）+16. 谢谢!
答
（x²-y²）²-8（x²+y²）+16=(x²-y²)² -8(x²-y²)+16-16y²=(x²-y²-4)²-16y²=(x²-y²-4+4y)(x²-y²-4-4y)=[x²-(y&...
因式分解：（x²-y²）²-8（x²+y²）+16. 谢谢!
（x²-y²）²-8（x²+y²）+16=(x²-y²)² -8(x²-y²)+16-16y²=(x²-y²-4)²-16y²=(x²-y²-4+4y)(x²-y²-4-4y)=[x²-(y&...