rmartin2602 rmartin2602
  • 27-06-2017
  • Mathematics
contestada

How many solutions does the following equation have, and what are the signs of the solutions? 5x^2-9x=2

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konrad509
konrad509 konrad509
  • 27-06-2017
[tex]5x^2-9x=2\\ 5x^2-9x-2=0\\ 5x^2+x-10x-2=0\\ x(5x+1)-2(5x+1)=0\\(x-2)(5x+1)=0\\ x=2 \vee x=-\dfrac{1}{5}[/tex]
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