Simplify (x-1)(x+1)

Problem

(x−1)*(x+1)

Solution

1. Identify the expression as a product of two binomials in the form (a−b)*(a+b)

2. Apply the difference of squares formula, which states that (a−b)*(a+b)=a2−b2

3. Substitute a=x and b=1 into the formula.

4. Simplify the resulting terms by calculating 1

Final Answer

(x−1)*(x+1)=x2−1

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