Question 73471
{{{ (18 + sqrt(567))/9}}}
Work out the square root first
{{{ sqrt(567) }}}
{{{ sqrt(21*27) }}}
{{{ sqrt(7*3*3*3*3) }}}
{{{ 9sqrt(7) }}}
{{{ (18 + 9sqrt(7))/9}}}
Divide all parts by 9
{{{ 2 + sqrt(7) }}}