How To Factor A Perfect Square Trinomial

Feb 3rd, 2012
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This is a step by step explanation of how to factor a perfect square trinomial. It also includes examples.

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A trinomial just means that it has 3 distinct values. These values came from a binomial (2 values) that was squared. All binomials squared are perfect square trinomials. I'll give an example:(x+2)^2 Which in words is (x plus two) squared. That is the same as writing this(x+2)(x+2) Which in words is (x plus two) times (x plus two)When you multiply this using FOIL (First, Outside, Inside, Last: x times x, x times 2, 2 times x, 2 times 2)you get: x^2+4x+4 Which in words is x squared plus 4x plus four. *******It's important to not that this new equation, and (x+2)^2 are equal. We didn't ch

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