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

bombshellbri

1. Multiply. (3x – 5)2 a. 9x2 – 30x + 25 b. 6x2 – 10 c. 9x2 – 25 d. 9x2 – 15x + 25 2. Multiply. (x + 3)(x – 4) a. x2 – 7x – 12 b. x2 – x – 12 c. x2 + x – 12 d. x2 – 12

  • one year ago
  • one year ago

  • This Question is Closed
  1. love_math
    Best Response
    You've already chosen the best response.
    Medals 0

    (a-b)^2=a^2-2ab+b^2

    • one year ago
  2. Compassionate
    Best Response
    You've already chosen the best response.
    Medals 1

    You first multiple inside parenthesis. 2 * 3x 2 * -5

    • one year ago
  3. Compassionate
    Best Response
    You've already chosen the best response.
    Medals 1

    For the other one use the FOIL method: First, Inner, outer, Last.

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

    it is square not 2

    • one year ago
  5. bombshellbri
    Best Response
    You've already chosen the best response.
    Medals 1

    @love_math is right. it is squared.

    • one year ago
  6. Compassionate
    Best Response
    You've already chosen the best response.
    Medals 1

    I'm aware.

    • one year ago
  7. bombshellbri
    Best Response
    You've already chosen the best response.
    Medals 1

    why;d you erase your first comment?

    • one year ago
  8. Compassionate
    Best Response
    You've already chosen the best response.
    Medals 1

    9x^2 - 25 x^2 - x - 12

    • one year ago
  9. bombshellbri
    Best Response
    You've already chosen the best response.
    Medals 1

    a. 9x2 – 30x + 25 was the answer

    • one year ago
  10. Compassionate
    Best Response
    You've already chosen the best response.
    Medals 1

    No it wasn't. \[(3x - 5)^2\] \[3x^2 - 25\] This polynomial is not factorable with real numbers. Your test is messed up. So maybe it wants: \[9x^2 - 25\] Again, this polynomial isn't factorable with real numbers. Your test is wrong.

    • one year ago
  11. bombshellbri
    Best Response
    You've already chosen the best response.
    Medals 1

    sure.

    • 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.