A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

Simplify: (21x^3y^4) / (-7xy) A. -3x^2y^3 B. -3xy C. 14x^2y^3 D. 14xy My answer: A PLease show me how to get the answer my teacher is a told brat.

  • This Question is Closed
  1. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @pooja195

  2. pooja195
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @Nnesha

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

    @Awolflover1 @zepdrix

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

    \[\huge\rm \frac{ x^m }{ x^n } = x^{m-n}\] move exponent from bottom to the top of fraction (if bases are the same )

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

    \[\large\rm \frac{21x^3y^4}{ -7xy} = -\frac{ 21 }{ 7 } \times \frac{ x^3 }{ x } \times \frac{ y^4 }{ y }\]

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

    that not right the / spouse to mean divid

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

    yeah ik

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

    what's not correct ??

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

    nothing I though you though that was a fraction

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

    yep that's a fraction :-)

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

    or you can factor x^3 remember exponent rule when you multiply same bases you should add their exponents \[\huge\rm x^m \times x^n = x^{m+n}\] so you can write \[\large\rm x^3 = x \times x \times x \]

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

    \(\color{blue}{\text{Originally Posted by}}\) @Nnesha \[\large\rm \frac{21x^3y^4}{ -7xy} = -\frac{ 21 }{ 7 } \times \frac{ x^3 }{ x } \times \frac{ y^4 }{ y }\] \(\color{blue}{\text{End of Quote}}\) \[\large\rm -\frac{ 21 }{ 7 } \times \frac{ x \times x \times x }{ x } \times \frac{ y^4 }{ y }\] now cancel ot x

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

    so their is only 2 x left

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

    ^^yep x times x can be written as = ??? hint exponent rule x^m times x^n = x^{m+n}

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

    okay thanks

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

    got it ??

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

    so what's ur answer ??

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

    oops sorry -3x^2y^3

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

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

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.