(8倍根号5+6倍根号3)눀

2024-12-22 12:09:48
推荐回答(1个)
回答1:

(8倍根号5+6倍根号3)²
=(8倍根号5)²+2*8*6*(根号5)*(根号3)+(6倍根号3)²
=64*5+96倍根号15+36*3
=320+96倍根号15+108
=428+96倍根号15