Multiply (x+7)(x-7)

Problem

(x+7)*(x−7)

Solution

1. Identify the expression as a product of a sum and a difference, which follows the pattern (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=7 into the formula.

4. Simplify the resulting expression by calculating the square of 7.

Final Answer

(x+7)*(x−7)=x2−49

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