计算:(3a²+1/2b)(3a²-1/2b)(9a四次方-1/4b²)过程写清楚,

计算:(3a²+1/2b)(3a²-1/2b)(9a四次方-1/4b²)过程写清楚,
计算:(3a²+1/2b)(3a²-1/2b)(9a四次方-1/4b²)过程写清楚,

计算:(3a²+1/2b)(3a²-1/2b)(9a四次方-1/4b²)过程写清楚,
(3a²+1/2b)(3a²-1/2b)(9a的4次方-1/4b²)
=(9a的4次方-1/4b²)(9a的4次方-1/4b²)
=(9a的4次方-1/4b²)²
=(9a的4次方)²-2(9a的4次方)(1/4b²)+(1/4b²)²
=81a的8次方-9/2a的4次方b²+1/16b的4次方
请点击下面的【选为满意回答】按钮.