Let fx Squareroot x 6 and gx x2 x Find and simplify the

Let f(x) = Squareroot x + 6 and g(x) = x^2 - x Find and simplify the expression Select the correct choice below and, if necessary, fill in the answer box to complete your choice. (f + g)(4) = (Simplify your answer) The answer is undefined

Solution

given f(x) = sqrt(x+5) , g(x) = x^2-x

(f+g)(4) = f(4)+g(4) = sqrt(4+5) + 4^2-4

= sqrt9 + 4

= 3+4

= 7