Simplify (x-3)(x+3)

Problem

(x−3)*(x+3)

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 that (a−b)*(a+b)=a2−b2

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

4. Simplify the resulting terms by calculating 3

Final Answer

(x−3)*(x+3)=x2−9

Want more problems? Check here!