Mathematics 0580 · IGCSE · Indices II
Solve for $x$ in $\left(\frac{1}{3}\right)^x=9^{x+4}$.
This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “\(-\frac{8}{3}\) or \(-2\frac{2}{3}\), equivalent value” …