Target Mathematics
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Course

  • Add Math 0606
  • FPM 4PM1

Add Math 0606 topics

  • 1. Functions55
  • 2. Simultaneous equations and quadratics34
  • 2. Quadratic functions35
  • 3. Factors and polynomials61
  • 4. Equations, inequalities and graphs127
  • 5. Logarithmic and exponential functions86
  • 6. Straight-line graphs107
  • 7. Coordinate geometry of the circle6
  • 8. Circular measure68
  • 9. Trigonometry180
  • 10. Permutations and combinations55
  • 11. Series99
  • 12. Calculus — Differentiation 185
  • 13. Vectors51
  • 14. Calculus — Differentiation 261
  • 15. Calculus — Integration92
  • 16. Kinematics42
  • Indices and surds39

Study tools

  • Add Math 0606 overview
  • Formula summary
Additional Mathematics 0606 / Logarithmic and exponential functions / 2.3

2.3: Equation in lg x

0606/21/O/N/16 — Question 3 · 5 marks · Log laws, Equations

· ·
Solve the equation 2lg⁡x−lg⁡(x+102)=12\lg x - \lg\left(\dfrac{x + 10}{2}\right) = 12lgx−lg(2x+10​)=1.
[5]
← 1.12: Simultaneous equations in log x and log y2.11: Equation in lg x (repeat) →
Target Mathematics · Topic questions and official mark schemes