Unformatted text preview: So: (x)²  (4)² ⇒ (x  4)(x + 4) One of the misconceptions that people have when determining the nature of polynomial is that a² + b² is factorable. Even though it can be factored in terms of i, it's impossible to factor that expression. Also note that you can factor nonnegative and not perfect terms. E.g. x²  2 Let: a² = x² a = x b² = 2 b = √2 So: x²  2 = (x  √2)(x + √2)...
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 Spring '10
 STONE,G
 Negative and nonnegative numbers, Square number, a=x b²

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