Question

If x:y = 3:1 find (x²-y²) : (x²+y²)​

Answer 1

Step-by-step explanation:

x=3 and y=1

so x^2-y^2=3^2-1^2

=9-1=8

x^2+y^2= 3^2+1^2

= 9+1=10

(x^2-y^2):(x^2+y^2)=8:10=4:5

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Answer 2

Answer:

if x =3

y=1

Step-by-step explanation:

then

(9-1):(9+1)

8:10