Выполните действие: \(\frac{m^2-4n^2}{2}\cdot\frac{6}{2n+m}.\)

• \(3(m-2n)\)
• \(3(m+2n)\)
• \(m-6n\)
• \(\dfrac{6m}{4n}\)
• \(\dfrac{3m}{n}\)