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anonymous

  • 5 years ago

simplify 9a²-b² ------- ab _________ 3a+b ----- a 3a+b a

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  1. anonymous
    • 5 years ago
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    disreguard the last 3a+b a it is typo

  2. anonymous
    • 5 years ago
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    A/B/C/D=AD/BC

  3. anonymous
    • 5 years ago
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    ???????

  4. anonymous
    • 5 years ago
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    Consider the first line of your problem A, second B and so on. You can put the first, last on top, two middle bottom

  5. anonymous
    • 5 years ago
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    what is the answer?

  6. anonymous
    • 5 years ago
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    well, well, what have we here>>>

  7. anonymous
    • 5 years ago
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    do u know the answer?

  8. anonymous
    • 5 years ago
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    cld u type out the question again ?

  9. anonymous
    • 5 years ago
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    simplify 9a²-b² ------- ab _________ 3a+b ----- a

  10. anonymous
    • 5 years ago
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    its a difference of square

  11. anonymous
    • 5 years ago
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    o.k, so does that mean divide by ab?

  12. anonymous
    • 5 years ago
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    yes

  13. anonymous
    • 5 years ago
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    (3a+b)(3a-b)

  14. anonymous
    • 5 years ago
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    (3a-b)/b

  15. anonymous
    • 5 years ago
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    oh, i see its a complex fraction

  16. anonymous
    • 5 years ago
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    so ur a is gonna cancel

  17. dumbcow
    • 5 years ago
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    First, factor 9a^2 -b^2 (3a-b)(3a+b) Then Flip and Multiply when dividing fractions flip the bottom fraction and change to multiplication \[\frac{(3a-b)(3a+b)}{ab}*\frac{a}{3a+b}\] Now cancel the a on top and bottom cancel the (3a+b) on top and bottom leaving.. (3a-b)/b

  18. anonymous
    • 5 years ago
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    wow, the cow did it again i am impressed

  19. anonymous
    • 5 years ago
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    medal for you!!!!!!!!!!!!!!!!!!!!

  20. anonymous
    • 5 years ago
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    it was hard to see at first, but I understand the question. Cool beans.

  21. dumbcow
    • 5 years ago
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    and to you for helping

  22. anonymous
    • 5 years ago
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    well its late. The monkey needs its rest. Goodnight everyone.

  23. dumbcow
    • 5 years ago
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    tina does it make sense? ... goodnight

  24. Gina
    • 5 years ago
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    (3a+b)(3a-b)=9a^2-b^2

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