SOLUTION: Here is a problem I can�t figure out. Radical sign with the radicand of x squared under it and the remainder is = x an identity (true for all values of x)?

Question 83182: Here is a problem I can�t figure out.

Radical sign with the radicand of x squared under it and the remainder is = x an identity (true for all values of x)?

Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Are you asking if this is an identity?

Well lets try some values

Let x=2
Plug in x=2

works

Let x=3
Plug in x=3

works

Let x=4
Plug in x=4

works

Now lets try some negative values

Let x=-2
Plug in x=-2

doesn't work. Since this equation is not true is not an identity
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