Respuesta :

addiererdman
the answer is C.
Any number squared will be positive, therefore x^2+y^2 has to equal a positive number. A is less than zero, so it is negative.
wegnerkolmp2741o

Answer:

C x^2 + y^2

Step-by-step explanation:

If x and y are real numbers

x^2 > 0 and y^2 >0  so x^2 + y^2 >0  and A is a negative number