Question 4235
{{{(3-sqrt(14))^2}}}
{{{(3-sqrt(14))*(3-sqrt(14))}}}  This is FOIL problem.


{{{9 - 3sqrt(14) - 3sqrt(14) + sqrt(14)*sqrt(14)}}}


Remember that the middle terms combine together, and also that {{{sqrt(14)*sqrt(14) = 14}}}
So, {{{9 -6sqrt(14) + 14}}}


Combine 9 + 14 = 23
{{{23 - 6sqrt(14)}}}


P.S. Warning:  Do NOT combine the 23 - 6 !!


R^2 at SCC