Question

If x square + y square = 80, find the value of ( x - y )square

Answer 1

Answer:

X^2 + Y^2=80

(x+y)(x-y)=80

x-y=80/x+y

(x-y)^2= (80/x+y)^2

(x-y)^2= 6400/(x+y)^2

I think this cant be simplified further

Hopes this helps.