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What are the restrictions, if any, on values for the variables in the following radical expressions?

 

1) √5-x

 

2) 7-√n+8

 

3)6y-5+2

 Apr 23, 2021
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When you have a sqrt()

Make sure the value inside of it is nonnegative. 

So

sqrt(3) works since 3 is not negative

sqrt(2.5) works since 2.5 is nonnegative. 

sqrt(0) works since 0 is nonnegative. 

sqrt(-3) does not work since -3 is negative. 

 

=^._.^=

 Apr 23, 2021

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