√2(√3+√5) (√80+√40)/5 (√5+3)(√5+2)(√a+√b)(3√a-√b)(4+√7)(4-√7)(√6+√2)(√6-√2)(√3+2)^(2√5-√2)2√12+√27√18-√9/22/3√9x+6√x/4a^√8a+3√50a

问题描述:

√2(√3+√5)
(√80+√40)/5
(√5+3)(√5+2)
(√a+√b)(3√a-√b)
(4+√7)(4-√7)
(√6+√2)(√6-√2)
(√3+2)^
(2√5-√2)
2√12+√27
√18-√9/2
2/3√9x+6√x/4
a^√8a+3√50a

√2(√3+√5)= √6+√15
(√80+√40)/5 =20+10√2
(√5+3)(√5+2)=11+5√5
(√a+√b)(3√a-√b)=3a-b+2√ab
(4+√7)(4-√7)=9
(√6+√2)(√6-√2)=4
(√3+2)^2=7+4√3
(2√5-√2)
2√12+√27=4√3+3√3=7√3
√18-√9/2=3√2-1.5√2=1.5√2
2/3√9x+6√x/4=2√x+3√x=5√x
a^√8a+3√50a