Answer:
√2 and √5 and their difference are all real numbers
Step-by-step explanation:
In looks like you want to know if the difference ...
[tex]\sqrt{2}-\sqrt{5}[/tex]
is a real number.
The square root of a non-negative number is a real number. The sum or difference of real numbers is a real number.
The sum you have indicated is a real number, approximately ...
√2 -√5 ≈ 1.4142 -2.2361 ≈ -0.8219
