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melissa1094 Group Title

r^2-d^2 factor completely.

  • one year ago
  • one year ago

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  1. jhonyy9 Group Title
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    @melissa1094 so do you know formula of difference of two squares ?

    • one year ago
  2. melissa1094 Group Title
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    no i dont /:

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

    • one year ago
  4. melissa1094 Group Title
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    would it be (a+b)^2

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

    • one year ago
  6. jhonyy9 Group Title
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    sorry there i have wrote (a+b)(a-b)

    • one year ago
  7. melissa1094 Group Title
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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.

    • one year ago
  8. jhonyy9 Group Title
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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

    • one year ago
  9. jhonyy9 Group Title
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    ok ?

    • one year ago
  10. AEB047 Group Title
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    (r+d)(r-d)

    • one year ago
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