计算(要过程)主要 3根号2+2根号8-根号50 (2+根号3)(2-根号3)+(2根号3+1)2

2024-12-17 03:15:13
推荐回答(3个)
回答1:

原式=3√2+4√2-5√2(4-3)+(2√3+1)²
=7√2-5√2+12+1+4√3
=2√2+4√3+13

回答2:

原式=3根号2+4根号2-5根号2(4-3)+4根号3+2
=根号2+4根号3+2

回答3:

原式=3根号2+4根号2-5根号2(2+根号3)(2-根号3)
=3根号2+4根号2-5根号2(4-3)
=3根号2+4根号2-5根号2
=2根号2