((3倍根号2)-1)(1+3倍的根号2)-((3根号2)-1)²
问题描述:
((3倍根号2)-1)(1+3倍的根号2)-((3根号2)-1)²
答
((3倍根号2)-1)(1+3倍的根号2)-((3根号2)-1)²=(3√2)²-1²-[(3√2)²-2×3√2+1²]=18-1-(18-6√2+1)=6√2-2 泪笑为您解答,如若满意,请点击[采纳为满意回答];如若您有不...