Question

Factorize 4m^2 − 1 i really need this now

Answer 1

(2m - 1)(2m + 1)

Explanation:

given

4m² - 1 ← is a difference of squares and factors in general as

a² - b² = (a - b)(a + b), so

4m² - 1

= (2m)² - 1² [ with a = 2m and b = 1 ]

= (2m - 1)(2m + 1)