a的4次方 减 3倍a平方 减 4
=(a⁴+a²)-(4a²+4)
=a²(a²+1)-4(a²+1)
=(a²-4)(a²+1)
=(a+2)(a-2)(a²+1)
不懂还可问,满意请及时采纳!祝你学习进步!o(∩_∩)o (就是点击“选为满意回答”)
a的4次方 减 3倍a平方 减 4
=(a⁴+a²)-(4a²+4)
=a²(a²+1)-4(a²+1)
=(a²-4)(a²+1)
=(a+2)(a-2)(a²+1)
不懂还可问,满意请及时采纳!祝你学习进步!o(∩_∩)o (就是点击“选为满意回答”)