Square of X + square of y = 17, what is x + y?

Square of X + square of y = 17, what is x + y?


Under positive and negative root sign (17-2xy)



X quadratic + y quadratic = 17, how much is quadratic
X quadratic + y quadratic = 17, how much is quadratic


8 & sup2; + 15 & sup2; = 17 & sup2; if it is a positive integer solution
Then x = 8, y = 15 or x = 15, y = 8



We know that the square of (x + y) is 17 and the square of (X-Y) is 13


1. (x + y) square = 17
, 2. (X-Y) square = 13
1 + 2 terms = 2 (x square + y Square) = 30
X square + y square = 15