81a的4次方-1因式分解
问题描述:
81a的4次方-1因式分解
答
81a^4-1
=(9a²+1)(9a²-1)
=(9a+1)(3a+1)(3a-1)
81a的4次方-1因式分解
81a^4-1
=(9a²+1)(9a²-1)
=(9a+1)(3a+1)(3a-1)