(5根号2+4根号3)(5根号2-4根号3)^2

2024-11-27 19:06:13

推荐回答（3个）

回答1：

(5根号2+4根号3)(5根号2-4根号3)^2
=[(5根号2)²-(4根号3)²](5根号2-4根号3)
=(50-48)(5根号2-4根号3)
=2(5根号2-4根号3)
=10根号2-8根号3

回答2：

若你的题目是：
(5根号2+4根号3)(5根号2-4根号3)^2
=(5根号2+4根号3)(5根号2-4根号3)(5根号2-4根号3)
=（50-48）(5根号2-4根号3)
=2(5根号2-4根号3)
=10根号2-8根号3)
若是：【(5根号2+4根号3)(5根号2-4根号3)】^2
=（50-48）^2（平方差公式）
=2^2=4

回答3：

(5根号2+4根号3)(5根号2-4根号3)²
=[(5根号2+4根号3)(5根号2-4根号3)](5根号2-4根号3)
=(50-48)(5根号2-4根号3)
=10√2-8√3