i found 6x2 √5 , but i cannot find the restrictions? If anyone can help me with this ive been stuck on this question. Thank you

i found 6x2 √5 , but i cannot find the restrictions? If anyone can help me with this ive been stuck on this question. Thank you

for example : f(x)=(square root) x+2

I need this answered! If you could also explain how you got the answer would be helpful also

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need steps broken down using words i.e, that apply : principal root, product rule, quotient rule, reciprocal and nth root

how do you find the domain and range of this equation? I have already graphed the equation, but I don't know how to find the domain and range of this equation.... please help me. I need the answer...