Unit 3 - Quadratic expressions

3.1  - Expanding double brackets (x + a)(x + b)

3.2  - Expanding double brackets (x ± a)(x ± b)

3.3  - Expanding double brackets (ax ± b)(cx ± d)

3.4 - Expanding and simplifying double brackets

3.5 - Expanding double brackets containing surds

3.6 - Expanding triple brackets (x + a)(x + b)(x + c)

3.7 - Expanding triple brackets (x ± a)(x ± b)(x ± c)

3.8 - Expanding triple brackets (ax ± b)(x ± c)(x ± d)

3.9 - Factorise quadratics (x + a)(x + b)

3.10 - Factorise quadratics (x + a)(x - b)

3.11 - Factorise quadratics (x - a)(x - b)

3.12 - Factorise quadratics - Difference of two squares

3.13 - Factorise quadratics (ax + b)(cx + d)

3.14 - Factorise quadratics (ax ± b)(cx ± d)