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 formula for the difference of squares, which states (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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