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magenxoxo

  • 3 years ago

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?

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  1. timo86m
    • 3 years ago
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    add like terms

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

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

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

  5. Brad1996
    • 3 years ago
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    B I think

  6. Brad1996
    • 3 years ago
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    Yeah Its B

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

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

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

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

  11. raden_zaikaria
    • 3 years ago
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    that ansmwer is 8x2-6x-7

  12. magenxoxo
    • 3 years ago
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    Thank you! everyone! :) I get it now :)

  13. Brad1996
    • 3 years ago
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    Any time

  14. raden_zaikaria
    • 3 years ago
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    welcome from malaysia hehe

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

  16. magenxoxo
    • 3 years ago
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    would the answer be D? or A...

  17. Jonask
    • 3 years ago
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    none

  18. magenxoxo
    • 3 years ago
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    oh........ why?

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

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

  21. magenxoxo
    • 3 years ago
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    hmm, so C?

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

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

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

  25. magenxoxo
    • 3 years ago
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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?

  26. Brad1996
    • 3 years ago
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    lol...

  27. magenxoxo
    • 3 years ago
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    what?

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

  29. magenxoxo
    • 3 years ago
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    Yes I did.

  30. Jonask
    • 3 years ago
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    you shud ask a new question as a new question

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

  32. magenxoxo
    • 3 years ago
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    ok,

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

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