#1**+1 **

(x-y)^2 = 300

x-y = +- sqrt 300

x-y = +- 17.3205

There are a LOT of possibilities here....unless you have another equation relating x and y there is no SPECIFIC solution.....here is one

x= -20

y=-37.3205 infinite others....

ElectricPavlov Nov 13, 2018