Can someone explain how to go through this?

5. (4 points) In this problem, we will approximate the value of the definite integral I = dx using the Trapezoid Rule. Here are the error bound for the Trapezoid Rule approximation and the second derivative of the function f(x) = ex's. IIn - IIS M(2 ) (b - a ) 3 and 12n2 f"(x) = 3xe" (2+ 3x-3 ) where M(2) is an upper bound for If" (x) | on [0,1]. (a) Find a practical upper bound for (f"(x) |, 0