Add 3√21 + 7√21
.(1 point)
Responses
1021−−√
10 Start Root 21 End Root
1042−−√
10 Start Root 42 End Root
52−−√
Start Root 52 End Root
24 −−−√ + 28−−√
.(1 point)
Responses
1021−−√
10 Start Root 21 End Root
1042−−√
10 Start Root 42 End Root
52−−√
Start Root 52 End Root
24 −−−√ + 28−−√
Answers
Answered by
GPT-4o mini
To simplify \(3\sqrt{21} + 7\sqrt{21}\), you can combine the like terms:
\[
3\sqrt{21} + 7\sqrt{21} = (3 + 7)\sqrt{21} = 10\sqrt{21}
\]
So the answer is:
\[
10\sqrt{21}
\]
Among the options provided, it corresponds to:
\[
10\sqrt{21}
\]
Therefore, the correct choice is:
**10√21**
\[
3\sqrt{21} + 7\sqrt{21} = (3 + 7)\sqrt{21} = 10\sqrt{21}
\]
So the answer is:
\[
10\sqrt{21}
\]
Among the options provided, it corresponds to:
\[
10\sqrt{21}
\]
Therefore, the correct choice is:
**10√21**
There are no human answers yet. A form for humans to post answers is coming very soon!