Factor x^2-4

Problem

x2−4

Solution

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

2. Determine the values of a and b by taking the square root of each term.

3. Substitute a=x and b=2 into the factoring formula (a−b)*(a+b)

Final Answer

x2−4=(x−2)*(x+2)

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