Determine Number of Terms

Discussion in 'Algebra' started by nycmathguy, Apr 12, 2022.

  1. nycmathguy

    nycmathguy

    Joined:
    Jun 27, 2021
    Messages:
    5,386
    Likes Received:
    422
    College Algebra
    Section R.4

    How is 108 done?

    Screenshot_20220412-033605_Samsung Notes.jpg
     
    nycmathguy, Apr 12, 2022
    #1
  2. nycmathguy

    MathLover1

    Joined:
    Jun 27, 2021
    Messages:
    2,989
    Likes Received:
    2,884
    108. (x+y)(z+w)(x-y)(z-w) will have 4 terms

    reason: recognize the difference of the squares (x^2-y^2) and (z^2-w^2), when we multiply them we get 4 terms
     
    MathLover1, Apr 12, 2022
    #2
    nycmathguy likes this.
  3. nycmathguy

    nycmathguy

    Joined:
    Jun 27, 2021
    Messages:
    5,386
    Likes Received:
    422
    Another simple question hiding behind the words "Challenge Problem." What's so challenging about it? College Professors love showing off how much they know or think they know. Wrong choice in words by Sullivan. Agree?
     
    nycmathguy, Apr 12, 2022
    #3
  4. nycmathguy

    MathLover1

    Joined:
    Jun 27, 2021
    Messages:
    2,989
    Likes Received:
    2,884
    challenging about it is to recognize the difference of the squares :) not all students would see that at first glance
     
    MathLover1, Apr 13, 2022
    #4
    nycmathguy likes this.
  5. nycmathguy

    nycmathguy

    Joined:
    Jun 27, 2021
    Messages:
    5,386
    Likes Received:
    422
    Ok.
     
    nycmathguy, Apr 13, 2022
    #5
Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Similar Threads
There are no similar threads yet.
Loading...