Factor 4c^2-1

Math
4c2-1
Rewrite 4c2 as (2c)2.
(2c)2-1
Rewrite 1 as 12.
(2c)2-12
Since both terms are perfect squares, factor using the difference of squares formula, a2-b2=(a+b)(a-b) where a=2c and b=1.
(2c+1)(2c-1)
Factor 4c^2-1

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