Solve: (i) AB (ii) A^2 – AB + 2B

Solution:

\[\left( \mathbf{i} \right)\text{ }\mathbf{AB}\text{ }\]

\[\left( ii \right)\text{ }{{\mathbf{A}}^{\mathbf{2}}}-\text{ }\mathbf{AB}\text{ }+\text{ }\mathbf{2B}\]