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

alfers101

Quadratic Equation: (x-4)(x-6)=2

  • one year ago
  • one year ago

  • This Question is Closed
  1. terenzreignz
    Best Response
    You've already chosen the best response.
    Medals 2

    You're supposed to find x, am I right? :)

    • one year ago
  2. alfers101
    Best Response
    You've already chosen the best response.
    Medals 0

    haha i dont know :) i think yes?

    • one year ago
  3. terenzreignz
    Best Response
    You've already chosen the best response.
    Medals 2

    Well, perform the FOIL method on (x-4)(x-6). You get...?

    • one year ago
  4. alfers101
    Best Response
    You've already chosen the best response.
    Medals 0

    what will you do with 2?

    • one year ago
  5. terenzreignz
    Best Response
    You've already chosen the best response.
    Medals 2

    Patience :) FOIL method on the left-hand-side you get x² - 10x + 24 right?

    • one year ago
  6. alfers101
    Best Response
    You've already chosen the best response.
    Medals 0

    yes

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

    so... x² - 10x + 24 = 2 Now you can more clearly see what to do with the 2, am I right? ;)

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

    .....

    • one year ago
  9. GaLm
    Best Response
    You've already chosen the best response.
    Medals 0

    you cant find x

    • one year ago
  10. alfers101
    Best Response
    You've already chosen the best response.
    Medals 0

    then what is it?

    • one year ago
  11. GaLm
    Best Response
    You've already chosen the best response.
    Medals 0

    use FOIL

    • one year ago
  12. GaLm
    Best Response
    You've already chosen the best response.
    Medals 0

    know what that is?

    • one year ago
  13. alfers101
    Best Response
    You've already chosen the best response.
    Medals 0

    yes. i got x^2-10x+24=2

    • one year ago
  14. alfers101
    Best Response
    You've already chosen the best response.
    Medals 0

    then whats next?

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

    Now add -2 to both sides

    • one year ago
  16. alfers101
    Best Response
    You've already chosen the best response.
    Medals 0

    what?

    • one year ago
  17. terenzreignz
    Best Response
    You've already chosen the best response.
    Medals 2

    Well, transpose 2, from the right side to the left... x² - 10x + 22 = 0

    • one year ago
  18. alfers101
    Best Response
    You've already chosen the best response.
    Medals 0

    oohh i get it. then what?

    • one year ago
  19. terenzreignz
    Best Response
    You've already chosen the best response.
    Medals 2

    Use the quadratic formula. Everything falls into place.

    • one year ago
  20. alfers101
    Best Response
    You've already chosen the best response.
    Medals 0

    i really cant. please help me :(

    • one year ago
  21. terenzreignz
    Best Response
    You've already chosen the best response.
    Medals 2

    Given your equation in the form ax² + bx + c = 0 Your x values are given by \[\huge \frac{-b \ \pm \ \sqrt{b^2-4ac}}{2a}\]

    • one year ago
  22. terenzreignz
    Best Response
    You've already chosen the best response.
    Medals 2

    Plug in and solve.

    • one year ago
  23. alfers101
    Best Response
    You've already chosen the best response.
    Medals 0

    what is my a ? my b is 10? my c is 24 ?

    • one year ago
  24. alfers101
    Best Response
    You've already chosen the best response.
    Medals 0

    i mean my c is 20?

    • one year ago
  25. terenzreignz
    Best Response
    You've already chosen the best response.
    Medals 2

    your b is -10 not just 10 a is 1, as there is no coefficient.

    • one year ago
  26. terenzreignz
    Best Response
    You've already chosen the best response.
    Medals 2

    c is 22, not 24. Look again.

    • one year ago
  27. alfers101
    Best Response
    You've already chosen the best response.
    Medals 0

    oh okay :) then whats next?

    • one year ago
  28. alfers101
    Best Response
    You've already chosen the best response.
    Medals 0

    ill just solve it?

    • one year ago
  29. terenzreignz
    Best Response
    You've already chosen the best response.
    Medals 2

    Yep.

    • one year ago
  30. alfers101
    Best Response
    You've already chosen the best response.
    Medals 0

    i think we're going to do a standard equation not quadratic equation?!

    • one year ago
  31. alfers101
    Best Response
    You've already chosen the best response.
    Medals 0

    standard form rather

    • 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.