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Math Help - Rational Expressions

  1. #1
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    Rational Expressions

    What do i do next?
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  2. #2
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    Re: Rational Expressions

    Quote Originally Posted by asilvester635 View Post
    What do i do next?
    Now start canceling common factors. Note that 4 -x = -(x - 4).

    -Dan
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  3. #3
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    Re: Rational Expressions

    Quote Originally Posted by asilvester635 View Post
    What do i do next?
    First of all, \displaystyle \begin{align*} 4 - x = (2 - x)(2 + x) \end{align*}, NOT \displaystyle \begin{align*} (x - 4)(x + 2) \end{align*}...
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    Re: Rational Expressions

    I did the reciprocal to change the division into multiplication
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