1. The problem statement, all variables and given/known data 4 ∫√(t)(10+t)(dt) 1 note, only the t is under the square root. 2. Relevant equations 3. The attempt at a solution Ok. I have to solve this integration problem by U substitution. To start, I am not entirely sure what to even set U equal to. I let it equal the number under the square root. So, U=t Du=dx But where do i go after this?