Mathematics 0580 · IGCSE · Indices I

Indices I — practice question

(a)[2]

Simplify the expression $\left(\dfrac{x^2}{4}\right)^{\frac{3}{2}}$.

(b)[4]

Given $16^x \times \left(\dfrac{1}{2}\right)^x = 4^{x+3}$, find $x$.

Worked solution & mark scheme

This 6-mark question has a full step-by-step worked solution and mark scheme. One marking point: Equivalent form: $\pm\frac{x^3}{8}$.

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