Quantcast

Got Homework?

Connect with other students for help. It's a free community.

  • across
    MIT Grad Student
    Online now
  • laura*
    Helped 1,000 students
    Online now
  • Hero
    College Math Guru
    Online now

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

P.nut1996 Group Title

Help please? Let f(x) =x+7 and g(x) =x–2. What is f(x)•g(x)?

  • one year ago
  • one year ago

  • This Question is Closed
  1. P.nut1996 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    \[A. x ^{2}-5x+14\]

    • one year ago
  2. P.nut1996 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    \[B. x ^{2}+5x-14\]

    • one year ago
  3. Goten77 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    |dw:1361917120837:dw|

    • one year ago
  4. RD⁴² Group Title
    Best Response
    You've already chosen the best response.
    Medals 2

    If f(x) =x+7 and g(x) =x–2 then f(x)•g(x) = (x+7)(x-2) Do FOIL or box method.

    • one year ago
  5. P.nut1996 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    \[C. x ^{2}+5x-5\]

    • one year ago
  6. P.nut1996 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    \[D. x ^{2}+9x+5\]

    • one year ago
  7. RD⁴² Group Title
    Best Response
    You've already chosen the best response.
    Medals 2

    What does (x+7)(x-2) equal?

    • one year ago
  8. Goten77 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    if those are you only multiple choices then just by looking at them we can decide which 1 is the only possible answer.... look at the ending constant

    • one year ago
  9. P.nut1996 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    \[(x+7)(x-2)= x ^{2}-2x+7x-14=x ^{2}+5x-14\]

    • one year ago
  10. P.nut1996 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    I got x^2+5x-14

    • one year ago
  11. RD⁴² Group Title
    Best Response
    You've already chosen the best response.
    Medals 2

    Well done!

    • one year ago
  12. P.nut1996 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    Thanks!

    • one year ago
  13. radar Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    Understand "composite" functions. This is more than just FOIL

    • one year ago
  14. radar Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    |dw:1361917642289:dw|

    • one year ago
  15. RD⁴² Group Title
    Best Response
    You've already chosen the best response.
    Medals 2

    @radar Read her question again, it asks for f(x)•g(x), not (f o g)(x)

    • one year ago
  16. radar Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    |dw:1361917795737:dw|

    • one year ago
  17. radar Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    OH, since it was such a large "dot" I thought maybe it was "composite" "FOILed again" lol

    • one year ago
  18. RD⁴² Group Title
    Best Response
    You've already chosen the best response.
    Medals 2

    haha

    • one year ago
  19. radar Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    Sorry about that @P.nut1996 stick with RD42

    • one year ago
  20. P.nut1996 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    Thank you so much guys! Very helpful! :D

    • one year ago
    • Attachments:

See more questions >>>

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.