Question 105147
{{{sqrt(7)(2sqrt(3)+3sqrt(7))}}}
{{{sqrt(7)(2sqrt(3))+sqrt(7)3sqrt(7))}}}
{{{2sqrt(7*3)+3sqrt(7*7))}}}
{{{2sqrt(21)+3sqrt(49))}}}
{{{2sqrt(21)+3(7))}}}
{{{2sqrt(21)+21)}}}