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Math Help - How does this equal this?

  1. #1
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    How does this equal this?

    Can someone explain to me what was factorized out in order for the two statements to be equal?

    Thank you!
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  2. #2
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    Quote Originally Posted by bluebiro View Post
    Can someone explain to me what was factorized out in order for the two statements to be equal?

    Thank you!
    Expand the term in the numerator and then simplify the numerator.
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