Question 1057982
rationalize the numerator and simplify
{{{(7-Sqrt(10))/2}}}
Multiply by the conjugate of the numerator over itself, (equals 1)
{{{(7-Sqrt(10))/2}}} * {{{(7+Sqrt(10))/(7+sqrt(10))}}} = {{{(49-10)/(2(7+sqrt(10)))}}} = {{{39/(14+2sqrt(10))}}}