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anonymous

  • one year ago

(3ab+9a-2)-(-5ab+4)

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  1. hybrik
    • one year ago
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    To solve this you have to simplify the 2nd polynomial in parathenses

  2. hybrik
    • one year ago
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    -(-5ab+4) is simplified to 5ab-4, then 3ab+9a-2+5ab-4

  3. anonymous
    • one year ago
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    I get -2ab+9a+2

  4. hybrik
    • one year ago
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    That is incorrect because you simplified the binomial wrong, as shown above it is simplified to 5ab-4

  5. hybrik
    • one year ago
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    With the proper simplification of 5ab-4, what would be the answer?

  6. anonymous
    • one year ago
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    5ab-9a-4

  7. hybrik
    • one year ago
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    You have 3ab+5ab+9a-6, 5ab-9a-4 is not correct

  8. anonymous
    • one year ago
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    5ab-4 isn't correct either, I'm supposed to find the difference of the two polynomials, the answer should be a trinomial

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