Add 321−−√+ 721−−√ .(1 point) Responses 1021−−√ 10 Start Root 21 End Root 1042−−√ 10 Start Root 42 End Root 24 −−−√ 28−−√ Start Root 24 End Root plus Start Root 28 End Root 52−−√

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The sum of √321 + √721 is not equal to any of the provided options.
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