问题
填空题
分解因式:x4-8y2(x2-2y2)=______.
答案
x4-8y2(x2-2y2),
=x4-8x2y2+16y4,
=(x2-4y2)2,
=[(x+2y)(x-2y)]2,
=(x+2y)2(x-2y)2.
分解因式:x4-8y2(x2-2y2)=______.
x4-8y2(x2-2y2),
=x4-8x2y2+16y4,
=(x2-4y2)2,
=[(x+2y)(x-2y)]2,
=(x+2y)2(x-2y)2.