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bry856

  • one year ago

simplifying algebraic expressions?

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  1. bry856
    • one year ago
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  2. bry856
    • one year ago
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    -a^2 - [-4a - (-15a^2 - 9a) ] - [1+(12a-1) ]

  3. bry856
    • one year ago
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    i know how to do problems like 7b^2-b+3b+6-3b^2+5+2b^2+7b but i get confused when parentheses and brackets are added

  4. anonymous
    • one year ago
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    ok

  5. Nnesha
    • one year ago
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    PEMDAS rule \[\large\rm -a^2 - [-4a - (-15a^2 - 9a) ] - [\color{reD}{1+(12a-1) }]\] first of solve red part there is a plus sign so u can remove that parentheses and then combine like terms \[\large\rm -a^2 - [-4a - (-15a^2 - 9a) ] - [\color{reD}{1+12a-1 }]\]

  6. anonymous
    • one year ago
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    do you want the answer because i have the answer and she is correct

  7. bry856
    • one year ago
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    yes please haha and thank you^^

  8. anonymous
    • one year ago
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    97a^2-12a

  9. bry856
    • one year ago
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    Nnesha, do you do that for both sides

  10. Nnesha
    • one year ago
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    new to open study? we are not allowed to give DIRECT Answer :-) http://openstudy.com/code-of-conduct

  11. bry856
    • one year ago
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    dang i typed that in and it said it was wrong

  12. anonymous
    • one year ago
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    ik but i cant explain it it just clicks then i skip a couple steps

  13. anonymous
    • one year ago
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    ^ is it is squared by 2

  14. Nnesha
    • one year ago
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    both sides ? if you mean other bracket then first you have to distribute parentheses by negative one \[\large\rm -a^2 - [-4a\color{blue}{ - (-15a^2 - 9a)} ] - [\color{reD}{1+12a-1 }]\] -1(-15a^2 -9a) and then combine like terms so -1(-15a^2 -9a ) = ??

  15. anonymous
    • one year ago
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    carp i thought i put a negative 97 its post to be -97a^2-12a

  16. Nnesha
    • one year ago
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    do you know how to distribute ?

  17. bry856
    • one year ago
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    kinda

  18. Nnesha
    • one year ago
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    alright distribute = multiply everything which is inside the parentheses by outside term so -1(-15a^2 -9a) multiply -1 times -15a^2 = ?? -1 times -9a = ??

  19. Nnesha
    • one year ago
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    and btw that answer is not correct :( js

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