Are there any values of x for which the expression is not defined under the set of real numbers?

Question

anonymous · Answer

4/ √x+2

steve816 · Answer

Square root of a negative number is undefined.

steve816 · Answer

Square root of negative number are not real numbers.

steve816 · Answer

$$x+2<0$$
$$x <-2$$
Any value that is less than -2 will not be defined under the set of real numbers.

mrnood · Answer

x+2<=0

(cannot divide by 0)

steve816 · Answer

What are you talking about, that is incorrect. I know it cannot divide by 0, so it is just less than @MrNood

mrnood · Answer

I think you will find it IS correct. 

It asks if there are values of x for which the expression is not defined
x=-2 results in an undefined expression

x<=-2 is the correct range of values for which it is undefined