1. The problem statement, all variables and given/known data Differentiate. f(x) = (x) (square root of (x2+5)) 2. Relevant equations 3. The attempt at a solution f(x) = (x) (square root of (x2+5)) =(x)(x2+5)1/2 f'(x)=(x)1/2(x2+5)-1/2(2x)+(1)(x2+5) =x3/(x2+5)1/2+(x2+5)1/2 I'm having problems simplifying. The answer in the back of the book is 2x^2 + 5 / Square root of x^2+5..