Question

If x2 + y2 = 221 and x - y = 1 , then find the value of x3 - y3.

Answer 1

x=y+1
(y+1)^2+y^2= 221
on solving these we get, y=10 or -11
so will be 11 or -10
now put these values in question according and get answer.

Answer 2

Step-by-step explanation:

If x2 + y2 = 221 and x - y = 1 , then find the value