Factor y^2-9

Problem

y2−9

Solution

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

2. Determine the values of a and b by taking the square root of each term.

3. Find a by calculating √(,y2)=y

4. Find b by calculating √(,9)=3

5. Apply the formula for the difference of squares, a2−b2=(a−b)*(a+b) substituting y for a and 3 for b

Final Answer

y2−9=(y−3)*(y+3)

Want more problems? Check here!