Verified answer

x=4y-1

2y(4y-1)=1

x=4y-1

8y²-2y-1=0

D=4+32=36

y1= (2+6)/16= 1/2=0,5

y2= (2-6)/16= -1/4= -0,25

x1=1

x2= -2

Ответ: (1;0,5), (-2; -0,25)