Posted by danni on .
find all solutions of the system.
y+x^2=5x
y5x=25

non linear equations 
Reiny,
from the 2nd:
y = 5x + 25
sub into the first
5x+25 + x^2 = 5x
x^2 + 10x + 25 = 0
(x+5)^2 = 0
x+5 = 0
x = 5
then y = 5(5) + 25 = 0