问题
填空题
在实数范围内分解因式:a5-4a=______.
答案
a5-4a=a(a4-4)
=a(a2+2)(a2-2)
=a(a2+2)(a+
)(a-2
).2
故答案为a(a2+2)(a+
)(a-2
).2
在实数范围内分解因式:a5-4a=______.
a5-4a=a(a4-4)
=a(a2+2)(a2-2)
=a(a2+2)(a+
)(a-2
).2
故答案为a(a2+2)(a+
)(a-2
).2