(2倍根号3-3倍根号2-根号6)(2倍根号3+3倍根号2-根号6)

2024-11-28 08:31:25
推荐回答(2个)
回答(1):

(2倍根号3-3倍根号2-根号6)(2倍根号3+3倍根号2-根号6)
=(2倍根号3-根号6-3倍根号2)(2倍根号3-根号6+3倍根号2)
=(2倍根号3-根号6)^2-(3倍根号2)^2
=12-12倍根号2+6-18
=-12倍根号2

根号27+[2+根号3]分之1-[根号3-1分之根号3]o次幂
=根号27+[2+根号3]分之1-1
=3倍根号3+2-根号3-1
=2倍根号3+1

根号12+[2-根号3]分之1-[2+根号3]乘根号3
=2倍根号3+2+根号3-(2倍根号3+3)
=根号3-1

回答(2):

(2√3+3√2-√6)(2√3-3√2-√6)
=[(2√3-√6)+3√2] [(2√3-√6)-3√2]
=(2√3-√6)²-(3√2)²
=12-12√2+6-18
=-12√2
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