Verified answer

(2x + y)² - 16m² = (2x + y)² - (4m)² = (2x + y - 4m)(2x + x + 4m)

Ответ:

(2x+y-4m)*(2x+y+4m)

Объяснение:

(2x+y)^2 - 16m^2=(2x+y)^2-4^2-m^2=(2x+y)^2-(4m)^2=(2x+y-4m)*(2x+y+4m)