#1**+1 **

Since y =x^2 + 1 let's substitute this into the second equation to solve for 'x'

2 x^2 + 3 (x^2+1) = 28

2 x^2 + 3x^2 + 3 = 28

5 x^2 - 25 = 0 divide by 5

x^2 - 5 = 0

x^2 = 5

x= +- sqrt 5 then y = 5 + 1 = 6 soooooo = sqrt 5 , 6 and -sqrt 5 , 6

ElectricPavlov Apr 19, 2019