Substitution Show all work for full credit. Clearly mark answers. Include units where appropriate. Indefinite Integrals via substitution Clearly indicate each substitution, and show your computation for the differential du explicitly. Then, anti-differentiate and back-substitute using your substitution equation. (These are the general antiderivatives of the integrands, as functions of x.) 1 . 24x - dx 4x3 +1 24 2. dx 4x3 +1 -0.22.x 3. adx 0.22x