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

Answer 1

The simplified expression for 321√ + 721√ is 10√21 + 8√2.

Answer 2

Add 19−−√ + 19−−√ .(1 point) Responses 219−−√ 2 Start Root 19 End Root 238−−√ 2 Start Root 38 End Root 20−−√ Start Root 20 End Root 40−−√

Answer 3

The simplified expression for 19√ + 19√ is 2√19 + 2√19, which can be further simplified to 4√19.

Answer 4

Add 22−−√3 + 322−−√ + 22−−√ .(1 point) Responses 22−−√3 + 422−−√ root index 3 Start Root 22 End Root plus 4 Start Root 22 End Root 522−−√ 5 Start Root 22 End Root 566−−√ 5 Start Root 66 End Root 22−−√3 + 444−−√ root index 3 Start Root 22 End Root plus 4 Start Root 44 End Root

Answer 5

The simplified expression for √3 + 32√ + √2 is √3 + 4√2 + √2, which can be further simplified to √3 + 5√2.

Please note that there is an error in the provided responses, as the expression is 22√3 + 32√ + 22√, not 22√3 + 422√ or 22√3 + 444√.