Simplify x^2-9

Problem

x2−9

Solution

1. Identify the expression as a difference of two squares, which follows the pattern a2−b2

2. Rewrite the constant term as a perfect square to match the pattern.

x2−3

3. Apply the formula for the difference of squares, which is a2−b2=(a−b)*(a+b)

(x−3)*(x+3)

Final Answer

x2−9=(x−3)*(x+3)

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