We can multiply polynomials by using a GRID METHOD
Write one of the polynomials across the top and the other down the left side.
$$ \begin{darray}{|c|c|c|c|}\hline & \color{blue}{x^2} & \color{blue}{-5x} & \color{blue}{6} \\ \hline \color{blue}{x} & & & \\ \hline \color{blue}{-1} & & & \\ \hline \end{darray} $$Fill in each empty box by multiplying the intersecting terms.
$$ \begin{darray}{|c|c|c|c|}\hline & \color{blue}{x^2} & \color{blue}{-5x} & \color{blue}{6} \\ \hline \color{blue}{x} & \color{orangered}{x^3} & \color{orangered}{-5x^2} & \color{orangered}{6x} \\ \hline \color{blue}{-1} & \color{orangered}{-x^2} & \color{orangered}{5x} & \color{orangered}{-6} \\ \hline \end{darray} $$Combine like terms:
$$ x^3-5x^2-x^2 + 6x + 5x-6 = \\ x^3-6x^2+11x-6 $$