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magenxoxo

help!? pleaseeee :) Simplify (6x2+ 11x – 3) + (2x2– 17x – 4) 8x2+ 6x – 1 8x2– 6x – 7 8x2+ 6x + 1 8x2– 6x + 7 How do you simplify these equations?

  • one year ago
  • one year ago

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  1. timo86m
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    add like terms

    • one year ago
  2. raden_zaikaria
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    6x2+ 11x – 3 + 2x2– 17x – 4

    • one year ago
  3. timo86m
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    (6x2+ 11x – 3) + (2x2 – 17x – 4) 8x^2 -4x -7

    • one year ago
  4. Jonask
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    \[6x^2+ 11x – 3 + 2x^2– 17x – 4\]

    • one year ago
  5. Brad1996
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    B I think

    • one year ago
  6. Brad1996
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    Yeah Its B

    • one year ago
  7. Brad1996
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    Setting it up like this makes it alot easier: (6x2+ 11x – 3) (2x2– 17x – 4)

    • one year ago
  8. Brad1996
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    6x2 + 2x2 = 8x2 11x - 17x = -6x -3 - 4 = -7

    • one year ago
  9. raden_zaikaria
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    6x2+ 2x2=8x2 and 11x – 17x = -6x and – 3 – 4 = -7

    • one year ago
  10. timo86m
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    (6x2+ 11x – 3) + (2x2 – 17x – 4) 8x^2 -6x -7 sorry

    • one year ago
  11. raden_zaikaria
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    that ansmwer is 8x2-6x-7

    • one year ago
  12. magenxoxo
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    Thank you! everyone! :) I get it now :)

    • one year ago
  13. Brad1996
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    Any time

    • one year ago
  14. raden_zaikaria
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    welcome from malaysia hehe

    • one year ago
  15. magenxoxo
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    Simplify 2x2(4x2+ 9x – 13) 6x4+ 18x3– 26x2 8x4+ 18x3– 26x2 8x2+ 18x – 26 6x2+ 18x – 26

    • one year ago
  16. magenxoxo
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    would the answer be D? or A...

    • one year ago
  17. Jonask
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    none

    • one year ago
  18. magenxoxo
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    oh........ why?

    • one year ago
  19. Jonask
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    \[2x^2(4x^2+ 9x – 13)\] now we are multiplying

    • one year ago
  20. Jonask
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    so \[2x^2\] should multiply each item in the bracket

    • one year ago
  21. magenxoxo
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    hmm, so C?

    • one year ago
  22. Jonask
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    almost there but notice that even the power changes \[2x^2(4x^2)=8x^{4}\]

    • one year ago
  23. Jonask
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    the powers add each other\[x^a(x^b)=x^{a+b}\]

    • one year ago
  24. magenxoxo
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    oh. ok. I wasnt sure if i was supposed to change the powers as well.

    • one year ago
  25. magenxoxo
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    Which of the following represents the area of a rectangle whose length is x – 7 and whose width is x + 12? x2+ 5x – 84 x2– 84 x2– 5x – 84 x2– 84x + 5 IS C THE CORRECT ANSWER?

    • one year ago
  26. Brad1996
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    lol...

    • one year ago
  27. magenxoxo
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    what?

    • one year ago
  28. Jonask
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    so did you get the answer to the previous one

    • one year ago
  29. magenxoxo
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    Yes I did.

    • one year ago
  30. Jonask
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    you shud ask a new question as a new question

    • one year ago
  31. Brad1996
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    I'm not 100% sure on this question :l

    • one year ago
  32. magenxoxo
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    ok,

    • one year ago
  33. magenxoxo
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    I'll close this question and post a new one so i can give u a medal.

    • one year ago
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