Question

If x-y=20; xy = 24, then find the value of x^2- y^2

Answer 1

Answer:

This isn't possible since

x - y = 20

xy = 24

x = 6   y = 4

x = 8   y = 3

x = 12  y = 2

x = 24  y = 1

And none of these subtracted is equal to 20

If you get the right question, x^2 - y^2 = (x+y) (x-y)