9A11 - Algebraic Powers Rule #2A
9A12 - Algebraic Powers Rule #2B
9A13 - Algebraic Powers Rule #3A
9A14 - Algebraic Powers Rule #3B
9A15 - Expanding #1
9A16 - Expanding #2
9A17 - Expanding #3
9A18 - Factorising #1
9A19 - Factorising #2
9A20 - Factorising #3
