Carlo is trying to factor the polynomial
How does the graph help?
It shows that
is a double root, so is a repeated factor.
Complete the problem.
by 2 by 3 rectangle, labeled as follows: left edge, x, minus 3, top edge, left, x, squared, interior top, left, x squared.
Labels added: Interior bottom, left, negative 3, x, squared, interior top, middle, 2, x squared.
Labels added: top edge, middle, 2, x, interior bottom, middle, negative 6, x, interior top, right, negative x.
Labels added: top edge, right, negative 1, interior bottom, right, 3.
Now use the Quadratic Formula to solve for