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  • 04-04-2018
  • Mathematics
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Which of the following is the product of the rational expressions shown below?

x 2x
--------- * -----------
x - 5 x + 4

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  • 04-04-2018
[tex] \frac{x}{x-5} * \frac{2x}{x+4} [/tex]
[tex] \frac{2x^{2} }{(x-5)(x+4)} [/tex]               (distribute out the bottom)
[tex] \frac{2 x^{2} }{ x^{2} + 4x-5x-20} [/tex]  
[tex] \frac{2 x^{2} }{ x^{2} -1x-20} [/tex]         (this is your answer)
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