how to add roots l

 

Asked by abhinav34.9dgatl | 9th Sep, 2020, 07:03: PM

Expert Answer:

begin mathsize 16px style square root of 28 space plus space square root of 63
equals square root of 7 cross times 4 end root space plus space square root of 9 cross times 7 end root
equals 2 square root of 7 space plus space 3 square root of 7
equals square root of 7 open parentheses 2 plus 3 close parentheses
equals 5 square root of 7 end style

Answered by Yasmeen Khan | 9th Sep, 2020, 07:21: PM