化簡:

×

+

的結(jié)果是( )
A.5

B.6

C.

D.5
【答案】
分析:先做二次根式的乘法,再把二次根式化簡為最簡二次根式,合并同類二次根式.
解答:解:

×

+

=

+2

=3

+2

=5

.
故選D.
點評:此題關鍵是先把二次根式化簡,再合并同類二次根式.
練習冊系列答案
相關習題
科目:初中數(shù)學
來源:2011-2012學年四川省巴中市南江縣沙河中學九年級(上)第一次月考數(shù)學試卷(解析版)
題型:選擇題
化簡:

×

+

的結(jié)果是( )
A.5

B.6

C.

D.5

查看答案和解析>>
科目:初中數(shù)學
來源:第3章《二次根式》中考題集(13):3.3 二次根式的加減(解析版)
題型:選擇題
化簡:

×

+

的結(jié)果是( )
A.5

B.6

C.

D.5

查看答案和解析>>
科目:初中數(shù)學
來源:第22章《二次根式》中考題集(13):22.3 二次根式的加減法(解析版)
題型:選擇題
化簡:

×

+

的結(jié)果是( )
A.5

B.6

C.

D.5

查看答案和解析>>
科目:初中數(shù)學
來源:第21章《二次根式》中考題集(13):21.3 二次根式的加減(解析版)
題型:選擇題
化簡:

×

+

的結(jié)果是( )
A.5

B.6

C.

D.5

查看答案和解析>>
科目:初中數(shù)學
來源:2013年四川省瀘州市天立國際學校中考數(shù)學模擬試卷(二)(解析版)
題型:選擇題
化簡:

×

+

的結(jié)果是( )
A.5

B.6

C.

D.5

查看答案和解析>>