Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

needhelpfastplease

  • 2 years ago

What is the value of the expression –3x^3 when x = –3? A. –81 B. –27 C. 27 D. 81

  • This Question is Closed
  1. needhelpfastplease
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @kym02

  2. kym02
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Did you work it out?

  3. needhelpfastplease
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i tried to @kym02 i think its C but im not quite sure

  4. kym02
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Alright i'll go it through with you. \[-3x^{3}\] Hence, \[x=-3\] so, \[(-3) \times (-3) \times (-3) = -27\] so basically it now becomes: \[-3(-27)\] which is equal to: \[81\] Therefore, the answer is D :) you had it! just needed to keep trying! :D

  5. needhelpfastplease
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    thank you!

  6. kym02
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    you're welcome!

  7. 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