Mathematics 0580 · IGCSE · Indices I

Indices I — practice question

(a)[1]

Simplify the expression $\dfrac{x^{2/3}}{x^{8/3}}$.

(b)[1]

For $16 = 64^k$, determine the value of $k$.

(c)[3]

Solve for $x$ in $3^{3x} \times \left(\frac{1}{9}\right)^{4 - 3x} = 3$.

Worked solution & mark scheme

This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: Equivalent forms are $x^{-2}$ or $\frac{1}{x^2}$

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI