Factoring Trinomials

Bell Ringer discussion

1. Define the term sum.

2. What are factors of a number?

3. Determine if the answer to the equation would be negative or positive?​

   1. negative + negative=

   2. negative ​+ positive=

   3. negative * negative=

   4. negative * positive=​

5 minutes

What are the factors of the following numbers?

10 15 20 24 36

​

​Which factor pair of 10 have a sum of 7?

Which factor pair of 15 have a sum of 8?

W​hich factor pair of 20 have a sum of 21?

Which factor pair of 36 have a sum of 12?​

• Have 3 distinct terms

• Can also be called polynomials

• For factoring it helps if they are written in decending exponential order with a positive lead coefficient

Lead coefficients are the coeffient (or numerical factor) of the term with the highest exponent. For A/C method it is important that you identify your lead coefficient becuase that is also your A value. The C vlaue is the constant term at the end of your trinomial. This is another reason why it is important that you write you trinomial in descending exponential order.