Hey there! :D
[tex] \sqrt{x^2}+yz[/tex] (the square root sign should reach over the additional numbers)
Plug in the values.
[tex] \sqrt{-2^2} + 8(1/2)[/tex]
Simplify.
[tex] \sqrt{4+4} [/tex]
[tex] \sqrt{8} [/tex]
In simplest radical form, √8= 2√2
Or, as a decimal, 2.8 (rounded)
I hope this helps!
~kaikers