SOLUTION: Solve for x and y: x^2 + y^2 = 17 y-1=x There are two solutions: (x1, y1) and (x2, y2) Evaluate: x1+y1+x2+y2= A. 2 sqrt19 B. 0 C. -2-2 sqrt19 D. 2 E. none of these (

Algebra ->  Exponential-and-logarithmic-functions -> SOLUTION: Solve for x and y: x^2 + y^2 = 17 y-1=x There are two solutions: (x1, y1) and (x2, y2) Evaluate: x1+y1+x2+y2= A. 2 sqrt19 B. 0 C. -2-2 sqrt19 D. 2 E. none of these (      Log On


   

Question 936464: Solve for x and y:
x^2 + y^2 = 17
y-1=x
There are two solutions: (x1, y1) and (x2, y2)
Evaluate: x1+y1+x2+y2=
A. 2 sqrt19
B. 0
C. -2-2 sqrt19
D. 2
E. none of these
(from there are two solutions and the evaulate problem under it, the x1, y1 and x2, y2 are all not exponents but logs)
Answer by josgarithmetic(39621) About Me  (Show Source):
You can put this solution on YOUR website!
The last comment is not found in the problem description and should not belong with the problem exercise.

The solutions for y are y=%281%2B-+sqrt%2833%29%29%2F2.



Corresponding x solutions are:

x=%28-1%2Bsqrt%2833%29%29%2F2 for y=%281%2Bsqrt%2833%29%29%2F2
AND
x=%28-1-sqrt%2833%29%29%2F2 for y=%281-sqrt%2833%29%29%2F2.


What do you find when you sum those four numbers?
0
zero