How do you solve the system #x^2+y^2+8x-20y+7=0# and #x^2+9y^2+8x+4y+7=0#?
1 Answer
Oct 6, 2016
Explanation:
Subtracting the first from the second we obtain
Now substituting those values in the first equation
1)
Now substituting in the second equation
2)
Finally, the system has the following real solutions.