Search
GeoGebra
  • Home
  • Resources
  • Profile
  • Classroom
  • App Downloads

Problem 6_2 (A)

Author:angela

6_2

Show that roots of the cubic equation are in arithmetic progression if and only if .

Solution:

Suppose roots are , , and with . Then, . and . It follows that and .

New Resources

  • Triangle with 3 Right Angles
  • Using Experimental Probability to Estimate π - Monte Carlo Method
  • Reflection = 180° Rotation about a Line
  • Volume by Shells Around y
  • רישום חופשי

Discover Resources

  • Forms of Linear Equations
  • การบวกเศษส่วน
  • Танграм
  • Midsegment Theorem

Discover Topics

  • Straight Lines
  • Natural Numbers
  • General Quadrilateral
  • Definite Integral
  • Hypothesis Testing
AboutPartnersHelp Center
Terms of ServicePrivacyLicense
Graphing CalculatorCalculator SuiteMath Resources

Download our apps here:

Download_on_the_App_Store_Badge_US-UK_RGB_blk_4SVG_092917

© 2026 GeoGebra®