You can put this solution on YOUR website! (a-b)/(sqrt(a)-sqrt(b)) I assume that this is the problem.
=(a-b)/(sqrt(a)-sqrt(b)) * (sqrt(a)+sqrt(b))/(sqrt(a)+sqrt(b)) We must eliminate all sqrts in the denominator.
=(a-b)(sqrt(a)+sqrt(b))/(a-b)
=sqrt(a)+sqrt(b)
.
Ed
