Mastering Integration by Parts: Solving ∫(2x-1)e^(-x) dx Made Easy

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SUMMARY

The discussion focuses on solving the integral ∫(2x-1)e^(-x) dx using the integration by parts method. The correct approach involves setting u = 2x - 1 and dv = e^(-x) dx. From this, the differential du is derived as du = 2 dx, and the integral of dv gives v = -e^(-x). The integration by parts formula is then applied to simplify the integral effectively.

PREREQUISITES
  • Understanding of integration techniques, specifically integration by parts.
  • Familiarity with the fundamental theorem of calculus.
  • Knowledge of differentiating exponential functions.
  • Ability to manipulate algebraic expressions involving polynomials and exponentials.
NEXT STEPS
  • Practice additional integration by parts problems, such as ∫x e^x dx.
  • Explore the application of integration by parts in solving definite integrals.
  • Learn about the reduction formula for repeated integration by parts.
  • Study the relationship between integration by parts and the product rule of differentiation.
USEFUL FOR

Students studying calculus, mathematics educators, and anyone looking to enhance their skills in solving integrals using integration techniques.

shivp09
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Homework Statement




∫▒〖(2x-1)e^(-x) 〗 dx



I don't want to butcher this but I know you use integration by parts, I just don't know how to do this one in particular because i is one of the simple ones I was told. Please Help
 
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Integration by parts is correct. Let u=2x-1 and dv=e^(-x) dx. What is du? What is v?
 

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