What function is equivalent to f(x) = 25x^2 - 20x + 4
A. f(x) = (5x + 4)(5x + 1)
B. f(x) = (5x - 4)( 5x - 1)
C. f(x) = (5x + 2)^2
D. f(x) = (5x - 2)^2
The correct answer is A. f(x) = (5x + 4)(5x + 1)
To verify this, you can expand the expression to see that it is equivalent to the original function f(x) = 25x^2 - 20x + 4.