12.1 Factors of algebraic expressions

12.2 Need of factorisation

12.3 Method of common factors

12.4 Factorisation by grouping the terms

12.5 Factorisation using identities

12.6 Factors of the expression in the form of (x + a) (x + b) = x2 + (a + b)x + ab

12.7 Division of algebraic expressions

12.8 Division of a monomial by

12.9 Division of an expression by a monomial