Answer:
(5x-2)(5x+2)
Explanation:
Rewrite 25x2 25 x 2 as (5x)2 ( 5 x ) 2 .
Rewrite 4 as 22 .
Since both terms are perfect squares, factor using the difference of squares formula, a2−b2=(a+b)(a−b) a 2 - b 2 = ( a + b ) ( a - b ) where a=5x a = 5 x and b=2 .