Question 517735
{{{(5-sqrt(6))(4+sqrt(6))}}}
FOIL
F: 5*4 = 20
O: {{{5*sqrt(6)}}}
I: {{{-4*sqrt(6)}}}
L: -6
:
So you have
20 + {{{5sqrt(6)}}}- {{{4sqrt(6)}}} -6
Combine like terms
{{{sqrt(6) + 14}}}