It is known that: x2 + Y2 + 4x-6y + 13 = 0, where x and y are rational numbers, then YX=______ ．

It is known that: x2 + Y2 + 4x-6y + 13 = 0, where x and y are rational numbers, then YX=______ ．

From the meaning of the question, we can get: (x + 2) 2 + (Y-3) 2 = 0. From the nature of non negative number, we can get x = - 2, y = 3. Then YX = 19

Given x square + y square + 4x-6y + 13 = 0, where x and y are rational numbers, then y square=
Understand the process

(x+2)**2 +(y-3)**2 =0
So x = - 2, y = 3
y**2=9

Given the square of X + the square of Y + 4x-6y = - 13, then the value of rational number X.. Y is

The above formula is arranged as follows: (x + 2) & sup2; + (Y-3) & sup2; = 0, so x = - 2, y = 3