Question: please help me with these with explanations. how do i get rid of the square root to the add by combining terms? Find the following

please help me with these with explanations. how do i get rid of the square root to the add by combining terms?

Find the following for the given functions. f ( x) = x2 + 6, g(x) = V8-x (a) (f + g) (x) = (b) (f - g) (x) = ( c) (fg) (x) = x" + 6x (d) (f/g) (x) = 8 - x X What is the domain of f/g? (Enter your answer using interval notation.)
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