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Icewinifredd

  • 3 years ago

(-3x-4y) 2=

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  1. Icewinifredd
    • 3 years ago
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    the 2 is a power. I just want to make sure I understand what's happening here

  2. precal
    • 3 years ago
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    @Study23 incorrect

  3. Study23
    • 3 years ago
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    Oh I though the two was just a number on the outside. That changes things drastically!

  4. Icewinifredd
    • 3 years ago
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    sorry. I'm not good with math. :(

  5. precal
    • 3 years ago
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    |dw:1334715679238:dw|

  6. precal
    • 3 years ago
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    |dw:1334715748505:dw|

  7. precal
    • 3 years ago
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    use foil or the box method. I used the box method.

  8. Icewinifredd
    • 3 years ago
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    ok. I think i understand the box method.

  9. precal
    • 3 years ago
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    @Study23 sometimes problems are posted incorrectly You are correct to assume that the 2 needed to be distributed. I had a feeling it was a power. No harm

  10. Study23
    • 3 years ago
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    You need to factor it out. \(\ \huge (-3x-4y)^2 \). Thats the same as \(\ \huge (-3x-4y)(-3x-4y) \). Foiling, that leaves \(\ \huge 9x^2 + 24xy + 16 y^2 \).

  11. Study23
    • 3 years ago
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    @precalc Thanks for mentioning me to let me know! :)

  12. Icewinifredd
    • 3 years ago
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    okay. thanks you guys! God bless!

  13. precal
    • 3 years ago
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    anytme :)

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spraguer (Moderator)
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is replying to Can someone tell me what button the professor is hitting...

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