Berthelette718 Berthelette718
  • 24-03-2014
  • Mathematics
contestada

What is ( √2 - √3 )² =

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Ariana2014
Ariana2014 Ariana2014
  • 24-03-2014

just use FOIL (First, Outer, Inner, Last).

( √2 - √3 ) X ( √2 - √3 )

First: √2 X √2 = 2
Outer: √2 X -√3 = -√6
Inner: -√3 X √2 = -√6
Last: -√3 X -√3 = 3

and then add them together.

2 - √6 - √6 + 3
5 - 2(√6)

The answer is 5 - 2(√6) . 

Answer Link
deathstrike001
deathstrike001 deathstrike001
  • 24-03-2014
2-2(square root of 6)+ 3
=5-2(square root of 6)
or 0.1
Answer Link

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