Determine method: Determine the appropriate method to factor 4h2−25. The expression is a difference of squares because it can be written as a2−b2, where both terms are perfect squares.
Identify terms: Identify the terms in the form of a2−b2. 4h2 can be written as (2h)2 because 2h×2h=4h2. 25 can be written as 52 because 5×5=25. So, 4h2−25 can be rewritten as (2h)2−52.
Apply formula: 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 get (2h)2−52=(2h−5)(2h+5).
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