How do you solve this system of equations: x2+2y=5,x+y=1?

1 Answer
Mar 14, 2018

x2+2y=5

x+y=1 so y=1x then you take this y value and you put it in the equation above

x2+2(1x)=5
x22x3=0

Then use the quadratic formula

=(2)±(2)2(1(3))2

from where x=1 and x=3