Evaluate the integral by making the given substitution. (Use C for the constant of integration. Remember to use absolute values Evaluate the indefinite integral. (Use Cfor the constant of integration.) /X\\f3X2dX Tutorial Exercise Evaluate the indefinite integral. f o'x 275x Step 1 We must decide what to choose for u. dX for which the derivative is also present, though perhaps missing a constant factor. 275x7 If u = x), then du = fl(X) (Six, and so it is helpful to look for some expression in I dx i [2 7 5x We see that 2 Ex is part of this integral, and the derivative of 2 Ex is 5' y 7,; -5 , which is simply a constant. If we choose u : 2 7 5X, then du : 75 dx. If u = 2 7 Ex is substituted into I 2 ElXSX, then we have f dx : idx, We must also convert dx into an expression involving u. Using du = 75 dx, then we get dx = |:| du. SkiQ (you cannot come back) Evaluate the indefinite integral. (Use C for the constant of integration.)