230问答网 > (2√3-√2)(√3+2√2) (-1-√5⼀2)^2 a√16a+3√a^3-1⼀2a^2√4⼀a(a>0)

(2√3-√2)(√3+2√2) (-1-√5⼀2)^2 a√16a+3√a^3-1⼀2a^2√4⼀a(a>0)

1.(2√3-√2)(√3+2√2) 2.(-1-√5⼀2)^2 3.a√16a+3√a^3-1⼀2a^2√4⼀a(a>0)谁会啊

2024-12-18 15:32:45

推荐回答（3个）

回答1：

1.(2√3-√2)(√3+2√2)
=6-√6+4√6-4
=2+3√6

2.(-1-√5/2)^2
=1+√5+5/4
=9/4+√5

3.a√16a+3√a^3-1/2a^2√4/a(a>0)
=4a√a+3a√a-a√a
=6a√a

回答2：

1.(2√3-√2)(√3+2√2)
=6+4√6-√6-4
=2+3√6

2.(-1-√5/2)^2
=(1+√5/2)²
=1+√5+5/4
=9/4+√5

3.a√16a+3√a^3-1/2a^2√4/a(a>0)
=4a√a+3a√a-a√a
=6a√a

回答3：

1.(2√3-√2)(√3+2√2)
=2√3*√3+4√3*√2-√2*√3-2√2*√2
=6+3√3*√2-4
=2+3√3*√2
2.(-1-√5/2)^2
=(1+√5/2)^2
=1+2*√5/2+5/4
=9/4+√5
3.a√16a+3√a^3-1/2a^2√4/a(a>0)
=4√a^3+3√a^3-√a^4/a
=7√a^3-√a^3
=6a√a