Second order differential equation

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SUMMARY

The forum discussion centers on solving the second-order ordinary differential equation (ODE) given by x4y'' + 2x3y' + y = 0. The user initially attempted to find a solution by assuming y = xa, leading to the characteristic equation a2 + a + x - 2 = 0. However, the user mistakenly associated this method with Euler's method, which is a numerical approach for solving differential equations, rather than a technique for finding analytical solutions. The discussion clarifies this misconception.

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  • Understanding of second-order ordinary differential equations
  • Familiarity with characteristic equations
  • Knowledge of the method of undetermined coefficients
  • Basic concepts of numerical methods, specifically Euler's method
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Students studying differential equations, mathematicians, and engineers seeking to understand analytical and numerical methods for solving second-order ODEs.

sara_87
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Homework Statement



find the general solution to the second order ode:
x4y''+2x3y'+y=0

Homework Equations



using Euler's method

The Attempt at a Solution



assume that the solution is y=xa
then y'=axa-1 and y''-a(a-1)xa-2
substituting these into the ode:
a(a-1)xa+2axa+xax-2=0
which gives
a2+a+x-2=0

and this is where i got stuck.
thank you
 
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?? You say "use Euler's method". That is a numerical method of solving differential equations. What you are doing has nothing to do with Euler's method.
 
I think i made a mistake. I thought when we use the assumption y=x^a that this is called Euler's method. but now i know it has nothing to do with it :)
 

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