2次根式计算(√2+1)(3-2√2)⼀√2-1

(√2+1)(3-2√2)/√2-1
2025-05-23 21:05:04
推荐回答(1个)
回答(1):

(√2+1)(3-2√2)/√2-1
=(√2+1)^2(3-2√2)
=(3+2√2)(3-2√2)
=9-8
=1