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Math Help - Simplifying

  1. #1
    Junior Member
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    Simplifying

    How do I answer:

    (2z-1)^2 - 3(2z-1)


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  2. #2
    Super Member
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    Quote Originally Posted by AJShaw View Post
    How do I answer:

    (2z-1)^2 - 3(2z-1)


    Cheers
    How do you simplify (a - b)^2 ?
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  3. #3
    Newbie
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    (2z-1)^2 - 3(2z-1)

    (2z-1)(2z-1) - 3(2z-1)

    (2z-1) is common in both terms so you can factor that out

    (2z-1) * ((2z-1) - 3)

    (2z-1)(2z-4)
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  4. #4
    Newbie
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    or just:
    4Z^2-10Z+4
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