# Simple Trinomial

Taught by dougsimmsonline
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Lesson Summary:

In this lesson, we learn how to factor a Simple Trinomial, which is a trinomial with a first term whose numerical coefficient is 1. The method involves identifying the numerical coefficients of the terms, finding two numbers that multiply to get the last term and add to get the middle term, and writing the factors in brackets. The lesson also covers how to apply this method when the numerical coefficient of the first term is negative.

Lesson Description:

The method for factoring a Simple Trinomial (a trinomial of the form x^2 + bx + c).

• What is a simple trinomial?
• How do you factor a simple trinomial?
• How can you identify the numerical coefficients of the terms of a polynomial?
• How do you know what a, b, and c are in a trinomial?
• How do you factor a^2 + 2a + 1?
• How do you factor x^2 + 4x + 4?
• How do you factor a^2 - ab - 6b^2?
• How do you factor a trinomial with two variables?
• How do you factor a trinomial with a negative sign in front of the first term?
• How do you factor a trinomial if a is negative?
• How do you factor -x^2 + 3xy + 10y^2?
• #### Staff Review

• Currently 4.0/5 Stars.
This lesson explains factoring clearly and slowly with every step shown. The problems shown are a good variety of problems that you might see in your math class.