ram16 ram16
  • 10-10-2017
  • Mathematics
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How to factorise and appear a commun facteur

How to factorise and appear a commun facteur class=

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jdoe0001 jdoe0001
  • 10-10-2017
[tex]\bf \cfrac{x^2}{5}-5\\\\ -------------------------------\\\\ \textit{using "5" as the common factor, what is the 1st term? say is "n"} \\\\\\ 5\cdot n=\cfrac{x^2}{5}\implies n=\cfrac{x^2}{5\cdot 5}\implies n=\cfrac{x^2}{25} \\\\\\ thus\qquad 5\left(\frac{x^2}{25}-1 \right)\qquad \qquad \boxed{5\cdot \cfrac{x^2}{25}\implies \cfrac{x^2}{5}}[/tex]
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