(3倍根号6-2倍根号2)(根号2+根号6)
问题描述:
(3倍根号6-2倍根号2)(根号2+根号6)
答
(3倍根号6-2倍根号2)(根号2+根号6)
=3倍根号6×√2﹢3√6×√6﹣2√2×√2﹣2√2×√6
=6√3﹢18﹣4﹣4√3
=2√3﹢14