Mathematics 0580 · IGCSE · Algebraic manipulation
Rearrange the formula $p = 2q^2$ so that $q$ is the subject.
This 2-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Either $q^{2}=\frac{p}{2}$ or $\sqrt{2}q=\sqrt{p}$” …