Formula For Factoring Trinomials (when $$ a = 1 $$ ) It's always easier to understand a new concept by looking at a specific example so you might want scroll down and do that first. This formula only works when $$ a = 1$$ .

Factoring Trinomials in the form x 2 + bx + c . To factor a trinomial in the form x 2 + bx + c, find two integers, r and s, whose product is c and whose sum is b. Rewrite the trinomial as x 2 + rx + sx + c and then use grouping and the distributive proper

To factor trinomials, make sure you know FOIL (First, Outside, Inside, Last) multiplication and how to factor. Write a space for the answer in FOIL form and fill in the First terms. Next, use factoring to guess at the Last terms. To factor, find two numbe