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ccastudentgrade10

  • one year ago

PLEASE HELP ME |-4b - 8| + |-1 - b^2| + 2b^3; b = -2 please explain steps?

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  1. BunnyKitten02
    • one year ago
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    i ca t really help you but if you go to brainly.com they can help, thats were my sister got her answer and her quesion was pretty close to this

  2. ccastudentgrade10
    • one year ago
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    okay ill try that

  3. anonymous
    • one year ago
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    substitute -2 for every b. Take it one piece at a time. Do you know how to do this part |-4(-2) - 8| =

  4. ccastudentgrade10
    • one year ago
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    why do you substitute -2 for every b? (i have to explain my steps) @peachpi

  5. ccastudentgrade10
    • one year ago
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    oh wait duh it makes so much sense now! but how do i work in the absolute value? do i just ignore it?

  6. anonymous
    • one year ago
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    sub the 2 because that's what they're asking you to do. don't ignore the absolute value signs. Make what you end up with positive, then drop them.

  7. anonymous
    • one year ago
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    |-4(-2) - 8| = |8 - 8| = |0| = 0

  8. ccastudentgrade10
    • one year ago
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    ohhhh okay thank you!!

  9. anonymous
    • one year ago
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    try this part |-1 - b^2|

  10. ccastudentgrade10
    • one year ago
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    so it would be |-1 - (-2)^2 |-1 - -4| |-1 + 4| |3| =3

  11. ccastudentgrade10
    • one year ago
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    @peachpi

  12. ccastudentgrade10
    • one year ago
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    for that part

  13. anonymous
    • one year ago
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    close. When you do (-2)² you get should have gotten 4 because a negative times a negative is a positive

  14. ccastudentgrade10
    • one year ago
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    oh right! okay thank you! when i get my answer ill type it here

  15. anonymous
    • one year ago
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    ok

  16. ccastudentgrade10
    • one year ago
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    is it -11? @peachpi

  17. anonymous
    • one year ago
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    yes -11

  18. ccastudentgrade10
    • one year ago
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    thank you!

  19. anonymous
    • one year ago
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    you're welcome

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