Exponential - quadratic equation

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SUMMARY

The discussion centers on solving the exponential equation 2n = n². The confirmed solutions are n = 2 and n = 4, with an additional solution identified as approximately n = -0.767. Participants recommend utilizing the Lambert W function for a more systematic approach to solving such equations, moving beyond mere guessing.

PREREQUISITES
  • Understanding of exponential and quadratic equations
  • Familiarity with the Lambert W function
  • Basic algebraic manipulation skills
  • Knowledge of numerical methods for finding roots
NEXT STEPS
  • Study the Lambert W function and its applications in solving equations
  • Explore numerical methods for root-finding, such as Newton's method
  • Learn about the properties of exponential and quadratic functions
  • Investigate graphical methods for visualizing solutions to equations
USEFUL FOR

Students, mathematicians, and educators interested in solving complex equations, particularly those involving exponential and quadratic relationships.

Tom83B
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Homework Statement



2n=n2

Homework Equations





The Attempt at a Solution



I know the solution is 2 and 4. But I have no idea how to solve it without guessing...
 
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Try looking at the LambertW function :) There's actually a third solution apart from the two you already found, its about -0.767
 

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