Show by division that
Generic rectangle, 2 rows by 3 columns, left edge labeled, x minus 2, interior top left, labeled, x squared. Below rectangle, expression label, x squared, + 6 x, + 9.
Labels added: Interior bottom left, minus 2, x.
Labels added: Interior top middle, 8 x, with arrow from, 8 x, through, negative 2 x, pointing at, 6, x, in expression below.
Labels added: top edge middle, 8, interior bottom middle, negative 16.
Labels added: interior top right, 25, with arrow from, 25, through, negative 16, pointing at, 9, in expression below.