Simplify the following expression by applying one of the theorems. State the theorem used. (b) (AB+CD)(BE+CD) 2. (10 Points) 2.5 (a) Multiply out and simplify to obtain a sum of products: (a) (A+B)(C+B)(D+B)(AGD+E) 3. (10 Points) 2.6 (d) Factor the following expression to obtain a product of sums: (d) XYZ+WZ+XQZ 4. (10 Points) 2.7 (b) Draw a circuit that uses only one AND gate and one OR gate to realize the following function: (b) WXYZ+VXYZ+UXYZ