Mastering Antiderivatives: Solving Challenging Problems with U-Substitution

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SUMMARY

The forum discussion centers on solving the integral \(\int \frac{x^{2}+3x+7}{\sqrt{x}}dx\) using u-substitution. The user initially struggles with the algebraic method and considers u-substitution as a potential solution. However, they later realize that simplifying the expression by dividing out terms is a more straightforward approach. This highlights the importance of exploring multiple methods before concluding on a solution.

PREREQUISITES
  • Understanding of integral calculus, specifically u-substitution.
  • Familiarity with algebraic manipulation of polynomials.
  • Knowledge of basic integral formulas and properties.
  • Experience with solving definite and indefinite integrals.
NEXT STEPS
  • Practice solving integrals using u-substitution with various functions.
  • Review algebraic techniques for simplifying rational expressions before integration.
  • Explore advanced integral calculus topics, such as integration by parts.
  • Study common integral forms and their applications in calculus problems.
USEFUL FOR

Students preparing for calculus exams, particularly those focusing on integration techniques, as well as educators seeking to enhance their teaching methods in integral calculus.

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Homework Statement


Find [tex]\int \frac{x^{2}+3x+7}{\sqrt{x}}dx[/tex]


Homework Equations





The Attempt at a Solution




I am reviewing for a test on tuesday. I can't see a good algebraic method to solve this using the fact that [tex]\int f(g(x))g'(x)dx=F(g(x))+C[/tex] so I am starting to think it requires a u-substitution which I am trying to get better at right now before the test. Can someone point me in the right direction here? Thankyou very much, I appreciate any help!
 
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Duh nevermind, I can just divide out the terms... *Sigh* I always spend lots of time on a problem, post it here, and then 3 minutes later I figure it out... Grr, sorry!

4-hanged.gif
 
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