Question

Find (f + g)(x).

Answer 1

\[f(x) = \sqrt{5x+7}, g(x) = \sqrt{5x-7}\]

Answer 2

(f+g)(x) means you add the two functions.

Answer 3

Yes but I do not know how to do that

Answer 4

ah. you just add them, simply.

Answer 5

\[= \sqrt{10x}\] ?

Answer 6

you can't simplify it to that extent, no.