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anonymous

  • one year ago

3. Simplify the expression. 9xy2 – 11xy2 I combine like terms 9xy^4 rounded to 66xy 66xy/-11 = -6 I have no clue to how to solve this.

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  1. AbdullahM
    • one year ago
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    Is the question: \(\sf\Large 9xy^2-11xy^2=?\)

  2. anonymous
    • one year ago
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    Yes

  3. AbdullahM
    • one year ago
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    we can factor out the \(\sf\Large xy^2\) to make it easier. :)

  4. anonymous
    • one year ago
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    Alright.

  5. anonymous
    • one year ago
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    So it's 9 -11 = 3?

  6. AbdullahM
    • one year ago
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    Use a calculator 9 - 11 = -2

  7. AbdullahM
    • one year ago
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    It seems like you have slight difficulties in addition/subtraction when the answer is negative...

  8. anonymous
    • one year ago
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    Hehe yeah

  9. anonymous
    • one year ago
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    so It's xy = -2?

  10. AbdullahM
    • one year ago
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    one sec

  11. AbdullahM
    • one year ago
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    \(\sf\large 9xy^2-11xy^2= xy^2(9-11)=xy^2(-2)=-2xy^2\)

  12. anonymous
    • one year ago
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    I don't think i'm going to remember that with out going over it a lot of time. Thanks a lot though i appreciate you putting up with me

  13. AbdullahM
    • one year ago
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    just remember this, it will make it easier \(\sf\Large ab + ac = a(b+c)\)

  14. anonymous
    • one year ago
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    Alright, i'll try to keep that in mind.

  15. anonymous
    • one year ago
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    Alright, i'll try to keep that in mind.

  16. AbdullahM
    • one year ago
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    if you forget it, it's called the distributive property. and I just switched it so that it would be helpful for this question. The distributive property actually says: \(\sf\Large a(b+c) = ab+ac\)

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