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melissa1094

  • 3 years ago

r^2-d^2 factor completely.

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  1. jhonyy9
    • 3 years ago
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    @melissa1094 so do you know formula of difference of two squares ?

  2. melissa1094
    • 3 years ago
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    no i dont /:

  3. jhonyy9
    • 3 years ago
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    so can you tell me what is equal (a-b)(a+b) = ?

  4. melissa1094
    • 3 years ago
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    would it be (a+b)^2

  5. jhonyy9
    • 3 years ago
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    why ? (a+b)^2 =(a+b)(a+b) right ? but there i have wrote (a+b98a-b) yes ? so than ?

  6. jhonyy9
    • 3 years ago
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    sorry there i have wrote (a+b)(a-b)

  7. melissa1094
    • 3 years ago
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    so it wouldnt be (a+b)^2? all i know is that it has something to do with special product rules.

  8. jhonyy9
    • 3 years ago
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    ok so you know that r*r-d*d=(r-d)(r+d)=r^2 +rd -rd -d^2 =r^2 -d^2

  9. jhonyy9
    • 3 years ago
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    ok ?

  10. AEB047
    • 3 years ago
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    (r+d)(r-d)

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