根号8加根号2等于多少,要步骤和结果,谢谢!!

2025-01-05 05:15:13
推荐回答(4个)
回答1:

√8 + √2
= √(2×2×2) + √2
=2√2 + √2
=3√2

回答2:

√8+√2=√2×2²+√2=2√2+√2=3√2

回答3:

√8+√2=2√2+√2=3√2

回答4:

√8+√2
=2√2+√2
=3√2 .