Mathematics 0580 · IGCSE · Algebraic manipulation

Algebraic manipulation — practice question

(a)[2]

Expand the bracketed expression $x^2(x-7)$.

(b)[1]

Factorise $y^2 + y$ by taking out the common factor $y$.

Worked solution & mark scheme

This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: So the answer is $x^3-7x^2$.

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