Question

To factor 4x^2 - 25, you can first rewrite the expression as

Answer 1

the answer is (2x)^2-(5)^2

Answer 2

4x² - 25 is an example of a binomial called the "difference of two squares".

It can be factored as follows:
(2x - 5)(2x + 5)  

In general, (a² - b²) = (a - b)(a + b)

hope this is helpful..