SOLUTION: {{{sqrt(63)+ sqrt(252)}}} how do you solve this? how do you do the square root sign on the computer?

Break 63 into primes as 
Break 252 into primes as 



Now since the index of a square root is 2,
use parentheses to group like factors into pairs:

 

Each pair of like factors is a square and comes
out in front of the radical as just a single
factor:






Those are like terms, so add 3+6 and get



Edwin

You type three open braces " { " in a row. I can't
type three of those here because the program would 
just print it again as .

Then you type immediately after that:

     sqrt(63)+ sqrt(252)

and immediately follow that by three close braces:

             " }}} "

Edwin