Question

resuelve cada sistema de ecuaciones a)x + y=0 x2+ y=2​

Answer 1

x + y = 0 -> y = -x

x2 + y = 2 -> x2 -x -2 = 0

x = (1+- 3)/2

x1 = 2

x2 = -1

2 + y = 0

y1 = -2

-1 + y = 0

y2 = 1

R = (2,-2) o (-1, 1)