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Math Help - rational expressions

  1. #1
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    Post rational expressions


    i did 15b wrong... can someone show me how to do it correctly thanks
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  2. #2
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    Re: rational expressions

    Hello,

    you didn't factor correctly the denominator of the 2nd fraction. The 2nd line should read:

    \frac{x+1}{x+6}-\frac{(x-2)(x+2)}{\color{red}x(x+2)\color{black}} \cdot \frac{x(2x+1)}{(2x+1)(x+3)}
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