Question

Factor completely
4x^2-1

Answer 1

4×^2-1=(2× +1)(2× -1)

Explanation:

using a^2 - b^2 =(a+b)(a-b)

Answer 2

(2x - 1)(2x + 1)

Explanation:

Difference of Squares: (ax + b)(ax - b) = (ax² - b²)