Blog 5 – Trinomials

This week in pre-calc we learned how to factor using trinomials.

There are a couple steps to figuring this out, but once you have figured it out it is very simple.

  1. identify a,b, and c in the trinomial ax2+bx+c.
  2. write down all factor pairs of c.
  3. identify which factor pair from the previous step sums up to b.
  4. Substitute factor pairs into two binomials.

example:

 

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