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anonymous

  • one year ago

What polynomial identity should be used to prove that 25^2 = (20 + 5)2?

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  1. SolomonZelman
    • one year ago
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    \(25^2=(20+5)^2\) why wouldn't 20+5=25 qualify as a proof?

  2. SolomonZelman
    • one year ago
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    25²=25² ....

  3. anonymous
    • one year ago
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    Difference of Cubes Difference of Squares Square of Binomial Sum of Cubes

  4. anonymous
    • one year ago
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    Those r the answer choices

  5. SolomonZelman
    • one year ago
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    There is only 1 way to expand (20+5)², and that is, knowing that: \((a+b)^2=a^2+2ab+b^2\) Now, this is something that you would name using which of the options?

  6. anonymous
    • one year ago
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    square bionomial

  7. anonymous
    • one year ago
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    @SolomonZelman where'd ya go?

  8. SolomonZelman
    • one year ago
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    yes

  9. SolomonZelman
    • one year ago
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    Square of binomial is correct

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