Mathematics 0580 · IGCSE · Algebraic manipulation
Factorise the expression $x^2-64$.
Factorise the expression $5x(x-2y)+6(x-2y)^2$.
This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “The factorised answer is \((x+8)(x-8)\).” …