Question 247449
6y+2=2y*y-6.
6Y+2=2Y^2-6
Y^2-6Y-6-2=0
Y^2-6Y-8=0
{{{Y = (-b +- sqrt( b^2-4*a*c ))/(2*a) }}} 
Y=(6+-SQRT[-6^2-4*1*-8])/2*1
Y=(6+-SQRT[36+32])/2
Y=(6+-SQRT68)/2
Y=(6+-8.246)/2
Y=(6+8.246)/2
Y=14.246/2
Y=7.123 ANS.
Y=(6-8.246)/2
Y=-2.246/2
Y=-1.123 ANS.