Evaluate the integral. [xex* dx Step 1 The Exponential Formula for integrals is given by e". u' dx = [e" du = e + C. We can use the Exponential Formula if we are able to write the integral in the form For our integrand to be in the proper form, u= u'dx. Then du 7x' 7d(x) dx. 28 Step 2 Now write the integral in the form dx e" u' dx. Multiply the integral by the necessary constant value. Sex x dx)