Question

if x^2 + y^2 = 25 and xy = 8 ,find x-y​

Answer 1

Step-by-step explanation:

x^2 + y^2 = 25so

(x-y)^2=25-2xy

(x-y)^2=25-2*8

(x-y)^2=25-16

(x-y)^2=9

x-y=3 Ans