elsawinnie elsawinnie
  • 14-07-2017
  • Mathematics
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simplify (2 (radical 5) - 4) (3 (radical 5) +2)

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Banabanana
Banabanana Banabanana
  • 14-07-2017
[tex](2 \sqrt{5}-4 )(3 \sqrt{5}+2 )=\\2*3*5+2*2* \sqrt{5} -4*3* \sqrt{5}-4*2= \\ 30+4 \sqrt{5}-12 \sqrt{5}-8= \\ 22-8 \sqrt{5} [/tex]
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