$\"\"$

$\"\"$ are factors of the polynomial function.

The polynomial function as a product.

$\"\"$

$\"equal$ (Product of two same signs is positive)

$\"equal$ (Using FOIL method)

$\"equal$

$\"equal$ (Simplify)

$\"equal$

$\"equal$ $\"\"$

$\"\"$ is a polynomial function of least degree with integral coefficients and zeros of $\"minus$ .