Answer:
-9/2, 3
Step-by-step explanation:
Multiply by 2 on both sides and move right side to left, get
[tex]2y^2+3y-27=0[/tex]
Use the quadratic formula
[tex]y=\frac{-3\pm\sqrt{3^2+2*4*27}}{4}=\frac{-3\pm\sqrt{225}}{4}=\frac{-3\pm15}{4}[/tex]
so y=-9/2, 3