Integrate 1/(2x+2x^2): Step-by-Step Guide

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SUMMARY

The integral of the function 1/(2x + 2x^2) can be solved using partial fraction decomposition rather than integration by parts. The correct factorization of the denominator is 2x(x + 1), which allows for the application of partial fractions. The final solution to the integral is -(1/2)ln(x + 1) + (1/2)ln(x). This approach clarifies the importance of recognizing the appropriate method for integration based on the structure of the function.

PREREQUISITES
  • Understanding of basic integration techniques
  • Familiarity with partial fraction decomposition
  • Knowledge of logarithmic properties
  • Ability to factor polynomials
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  • Study partial fraction decomposition techniques in calculus
  • Practice integrating rational functions using various methods
  • Review properties of logarithms for simplification
  • Explore advanced integration techniques such as integration by substitution
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Students studying calculus, particularly those focusing on integration techniques, and educators looking for examples of rational function integration methods.

fredrick08
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Homework Statement


int(1/(2x+2x^2))dx


The Attempt at a Solution


can someone help me where to start with this one i know its not hard, but i can't find out what to factorize then do parts??

ive forgotten this simple integration stuff, do i make it 1/2x(x+1) then integrate by parts?? anyways the answer is -(1/2)ln(x+1)+(1/2)ln(x) i have to use parts don't i, or can i separate some how??
 
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Since you've factorized the denominator, seems like you should integrate by partial fractions, not by parts.
 
ah ok ty, let me try
 
lol ty for pointing how stupid i can be sometimes... quite embarrassing lol
 

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