Answer:
only -7
Step-by-step explanation:
Just plug them in.
so for x=-7 [tex]\sqrt{-2(-7)-5}=(-7)+4\\\sqrt{9}=-3 \\ 3=-3[/tex]So this one is extraneous
Then if you plug -3 in you get 1 = 1 so this one is not extraneous. if you need me to work this one out let me know.
