austinpauly2005 austinpauly2005
  • 13-05-2020
  • Mathematics
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(√3-√5)(√5+√3)/7-2√5

Respuesta :

TheUnknownScientist
TheUnknownScientist TheUnknownScientist
  • 13-05-2020

Answer:

= - 14 - 4√5/ 29

Step-by-step explanation:

(√3-√5)(√5+√3)/7-2√5

= √15 + 3 - 5 - √15/7 - 2√5

= - 2/7 - 2√5

= - 2/7 - 2√5 x 7 + 2√5/7 + 2√5

= - 14 - 4√5/49 + 14√5 - 14√5 - 20

= - 14 - 4√5/ 29

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