Question

If x=\frac{2-\sqrt{5} }{2+\sqrt{5} }
and y=\frac{2+\sqrt{5} }{2-\sqrt{5} }
find x^{2}-y^{2}

PLEASE HELP FRIENDS..

Answer 1

Answer:

-72√5

Step-by-step explanation:

x² - y² = (x+y)(x-y)

Please refer to attachment .