E2.2.1 Simplify expressions by collecting like terms.
Simplify expressions by collecting like terms.
E2.2.2 Expand products of algebraic expressions.
Expand products of algebraic expressions.
E2.2.3 Factorise by extracting common factors.
Factorise by extracting common factors.
E2.2.4 Factorise expressions of the form: • ax + bx + kay + kby • a2x2 − b2y2
Factorise expressions of the form: • ax + bx + kay + kby • a2x2 − b2y2 • a2 + 2ab + b2 • ax2 + bx + c • ax3 + bx2 + cx.
E2.2.5 Complete the square for expressions in the form ax2 + bx + c
Complete the square for expressions in the form ax2 + bx + c. Simplify means give the answer in its simplest form, e.g. 2a2 + 3ab – 1 + 5a2 – 9ab + 4 = 7a2 – 6ab + 3. e.g. expand 3x(2x – 4y), (3x + y)(x – 4y). Includes products of more than two brackets, e.g. expand (x – 2)(x + 3)(2x + 1). Factorise means factorise fully, e.g. 9x2 + 15xy = 3x(3x + 5y).