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Math Help - multiplying rational expressions

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    multiplying rational expressions

    4x-20/x^2-25 * x^2+10x+25/10 => 4(x-5)/(x+5)(x-5) * (x+5)(x+5)/10 then?
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  2. #2
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     \frac{4(x-5)}{(x+5)(x-5)} \times \frac{(x+5)(x+5)}{10}<br />

     \frac{4(x-5)(x+5)(x+5)}{10(x+5)(x-5)}

     \frac{4(x+5)}{10}

     \frac{2(x+5)}{5}
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