Determine factoring technique: Determine the appropriate factoring technique for 4x2−1.Since we have a difference of squares, we can use the identity a2−b2=(a−b)(a+b).
Identify terms as squares: Identify the terms in the expression 4x2−1 as squares.4x2 can be written as (2x)2 and 1 can be written as 12.So, 4x2−1=(2x)2−12.
Apply difference of squares formula: Apply the difference of squares formula to factor the expression.Using the identity from Step 1, we have:(2x)2−12=(2x−1)(2x+1).
Verify no common factors: Verify that there are no common factors and that the expression cannot be factored further.The terms 2x−1 and 2x+1 have no common factors and cannot be factored further.
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