When you are given a trinomial, or a quadratic equation, it can be useful to factor the equation for the purposes of canceling and simplifying. Factoring trinomials is easiest when the leading coefficient (the coefficient on the squared term) is one. A more complex situation is factoring trinomials when the leading coefficient is not one. To factor trinomials we use methods that involve finding the factors of their coefficients.

### How Do You Factor Trinomials, where A=1?

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*ClassBrain Math Tutorials*, 2 March 2013, 10:52 UTC, <http://www.classbrainmath.com/factoring-trinomials-a1/> [accessed 16 July 2018] - The Chicago Manual of Style
- Cynthia Kirkeby, “How Do You Factor Trinomials?.”
*ClassBrain Math Tutorials*, http://www.classbrainmath.com/factoring-trinomials-a1/ [accessed July 16, 2018]. - CBE/CSE style
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