1.1. Show that $(x+2)$ is a factor of $2{x}^{3}-3{x}^{2}-11x+6$.

1.2. Fully factorise $2{x}^{3}-3{x}^{2}-11x+6$.

1.3. Sketch the graph of $y=2{x}^{3}-3{x}^{2}-11x+6$. Label any points where the graph crosses the coordinate axes.