Determine factoring technique: Determine the appropriate factoring technique for 25c2−16. 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 25c2−16 as perfect squares.25c2 can be written as (5c)2 because 5c×5c=25c2.16 can be written as 42 because 4×4=16.So, 25c2−16 is in the form of a2−b2 where a=5c and 25c20.
Apply difference of squares formula: Apply the difference of squares formula to factor the expression.Using a=5c and b=4, we get:25c2−16=(5c)2−42=(5c−4)(5c+4).
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