Recognize as Difference of Squares: Determine the approach to factor 25w2−16. We can recognize this expression as a difference of squares because it is in the form a2−b2, where both terms are perfect squares.
Identify Perfect Squares: Identify the squares in the expression 25w2−16. 25w2 can be written as (5w)2 because 5w×5w=25w2. 16 can be written as 42 because 4×4=16. So, 25w2−16 can be expressed as (5w)2−42.
Apply Formula to Factor: Apply the difference of squares formula to factor the expression.The difference of squares formula is a2−b2=(a−b)(a+b).Using this formula, we can write (5w)2−42 as (5w−4)(5w+4).
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