(3倍的根号2-根号6)(负3倍的根号2-根号6)等于

问题描述:

(3倍的根号2-根号6)(负3倍的根号2-根号6)等于

3√2-√6﹚﹙﹣3√2-√6﹚
=﹙﹣√6﹚²-﹙3√2﹚²
=6-18
=﹣12.