If x 2 – y 2 = 101, find the value of x 2 + y 2 ,
given that x and y are natural numbers.  Choose the most appropriate option.
A) 5100	B) 5101	C) 5102	D) 5103	E) 5104
x^2 – y^2 = 101   =&gt; (x+y)*(x-y) = 101*1   x+y = 101   x-y = 1   so, x = 51, y = 50   (x^2 + y^2) = 51^2 + 50^2 = 5101   ANSWER:5101
<result>B</result>
If x 2 – y 2 = 101, find the value of x 2 + y 2 ,
given that x and y are natural numbers.