Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

Tati_Lee

  • 2 years ago

please help! Explain, in complete sentences, how you would factor 27x4 – 90x2 + 75. Provide the factors

  • This Question is Closed
  1. cwrw238
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    notice that 27, 90 and 75 are all divisible by 3 so we can write 3(9x^4 - 30x^2 + 25) now you can try to factor whats in parentheses

  2. cwrw238
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    we must now look for 4 numbers which are factors of 9 and 25 which give us a product of 25 and when multiplied and added give us the middle number -30 to give factors of the form (ax^2 + b)(cx^2 + d)

  3. Tati_Lee
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    3(3x^2-5)(3x^2-5)

  4. Tati_Lee
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    is that right?

  5. cwrw238
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I do this by trial and error - yeah - thats right - why are you asking?!!

  6. Tati_Lee
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    sorry i was just making sure o.O

  7. eyust707
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    great job!

  8. cwrw238
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    thats ok - thats as far as you can go 3x^ -5 won't factor

  9. Tati_Lee
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    thank you eyust & ohhh okay thanks & you're a little fiesty lolol

  10. Tati_Lee
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    eyust you never answer my last question on the other problem

  11. cwrw238
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yeah - good luck

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

    Search OpenStudy
    • 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.