Perform the operation and simplify: y2−1y2+2y⋅y2+4y+4y2+y−2\frac{y^2-1}{y^2+2y} \cdot \frac{y^2+4y+4}{y^2+y-2}y2+2yy2−1⋅y2+y−2y2+4y+4.
y+2y\frac{y+2}{y}yy+2
y−2y\frac{y-2}{y}yy−2
y+1y\frac{y+1}{y}yy+1
y−1y\frac{y-1}{y}yy−1