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jalinnn Group Title

(x + 2)(x - 2)

  • 2 years ago
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  1. videogamer321 Group Title
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    Will you take care of this freckles?

    • 2 years ago
  2. freckles Group Title
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    Recall in your earlier post that: \[(x-y)(x+y)=x(x+y)-y(x+y)=x(x)+x(y)-y(x)-y(y)\] \[=x^2+xy-xy-y^2=x^2-y^2 \]

    • 2 years ago
  3. freckles Group Title
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    \[(x-y)(x+y)=x^2-y^2 \]

    • 2 years ago
  4. freckles Group Title
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    So you are multiplying conjugates all you have to do is do the first^2-last^2

    • 2 years ago
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spraguer (Moderator)
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