(2根号3+根号6)(2根号3-根号6)-(根号2-根号3)的平方

问题描述:

(2根号3+根号6)(2根号3-根号6)-(根号2-根号3)的平方

(2根号3+根号6)(2根号3-根号6)-(根号2-根号3)的平方
=(2根号3)²-(根号6)² -(2- 2根号6+3)
=12-6-(5-2根号6)
=6-5+2根号6
=1+2根号6