Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

shaqadry

  • 2 years ago

integrate -x(1+2x)^5 dx

  • This Question is Closed
  1. ash2326
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    \[\int -x(1+2x)^5dx\] We can expand (1+2x)^5, but that will be tiring Do you know u substitution method ?

  2. shaqadry
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    how do i solve it by parts?

  3. ash2326
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Not by parts, do u know u-substitution? It'll make it easy

  4. ash2326
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @shaqadry Put 2x+1=t so \[2dx=dt\] \[dx=\frac{dt}{2}\] Do you get this?

  5. shaqadry
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yes!

  6. shaqadry
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    and then?

  7. shaqadry
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    wait but the question requires me to solve it by parts :-/

  8. ash2326
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Then, we will use this \[\int uv=u\int v-\int(du \int v)\]

  9. ash2326
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Can you try, apply it here?

  10. shaqadry
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @ash2326 which one should i equate to 'u' ? which is the better choice?

  11. ash2326
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Equate x to u, it'll become 1 in the second part of by parts and then we find the integral easily @shaqadry

  12. shaqadry
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    okay thanks i will try to solve it!

  13. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Ask a Question
Find more explanations on OpenStudy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.