Given x + y = 12, xy = 9, x < y, find the value of (x ^ 0.5 - y ^ 0.5) / (x ^ 0.5 + y ^ 0.5) RT

Given x + y = 12, xy = 9, x < y, find the value of (x ^ 0.5 - y ^ 0.5) / (x ^ 0.5 + y ^ 0.5) RT

(x^0.5 -y^0.5)/(x^0.5 +y^0.5)