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anonymous

  • one year ago

Help Medal and Fan If (9x − 4)(9x + 4) = ax2 − b, what is the value of a? The value of a is _____________.

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  1. anonymous
    • one year ago
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    @DanJS

  2. anonymous
    • one year ago
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    81x^2 + 36x-36x-16

  3. anonymous
    • one year ago
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    81x^2-16

  4. anonymous
    • one year ago
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    so it cancels out

  5. anonymous
    • one year ago
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    wouldnt it be 81? since 81 is the term for a

  6. anonymous
    • one year ago
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    i mean 81

  7. anonymous
    • one year ago
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    lol thanks again

  8. anonymous
    • one year ago
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    lol thanks again

  9. triciaal
    • one year ago
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    already done difference of 2 squares yes a = 81

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spraguer (Moderator)
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