Determine factoring technique: Determine the appropriate factoring technique for 25h2−4. Since we have a difference of squares, we can use the formula a2−b2=(a−b)(a+b).
Identify perfect squares: Identify the terms in the expression 25h2−4 as perfect squares.25h2 can be written as (5h)2 because 5h×5h=25h2.4 can be written as 22 because 2×2=4.So, 25h2−4 is in the form of a2−b2 where a=5h and 25h20.
Apply difference of squares formula: Apply the difference of squares formula to factor the expression.Using the formula a2−b2=(a−b)(a+b), we get:(5h)2−22=(5h−2)(5h+2).
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