5.4 Factoring a Difference of Squares - Math 9 Honours...

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Math 9 Honours – Lesson Notes Factoring a Difference of Squares Recall: m 2 – 3m – 28 = I call this a “nice” trinomial. The leading coefficient is 1. p 2 – 16 = This isn’t a trinomial, but it can be turned p 2 – 0p – 16 = into one by inserting 0p in the middle. It now turns into a “nice” trinomial and can be factored. x 2 – 49y 2 = x 2 – 0xy – 49y 2 = This is called a

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