Question 204611
Rationalise the denominator of:
{{{2/(2-sqrt(a))}}} Multiply the fraction by {{{(2+sqrt(a))/(2+sqrt(a))}}}
{{{2(2+sqrt(a))/(2-sqrt(a))(2+sqrt(a))}}} Simplify.
{{{highlight((4+2sqrt(a))/(4-a))}}}