Factor x^2-1

Problem

x2−1

Solution

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

2. Determine the values of a and b by taking the square root of each term, where a=√(,x2)=x and b=√(,1)=1

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

4. Substitute the values of a and b into the formula to obtain the factored form.

Final Answer

x2−1=(x−1)*(x+1)

Want more problems? Check here!