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    2x2 - 32
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    (Original post by LeCroissant)
    2x2 - 32
    2(x squared - 16)
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    (Original post by LeCroissant)
    2x2 - 32

    2(x2-16)
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    (Original post by LeCroissant)
    2x2 - 32
    2 is a common factor, so take this outside the brackets:

    2(x^2 - 16)

    using the "difference of two squares" rule (one squared number minus another squared number), you can further simplify and factorise the expression:

    = 2(x-4)(x+4)

    And that's it really! hope that makes sense
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    2 (x-4)(x+4)

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    Two times (x take 4) times (x add four)
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    (Original post by han0110)
    2(x squared - 16)
    (Original post by Smarties<3)
    2(x2-16)
    Ooooohhh I'm so stupid- I wrote that half of 32 is 18 so that's why I couldn't do it :facepalm:.
 
 
 
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