# How do you use the difference of two squares formula to factor 3K^2 - 75H^2?

$3 {K}^{2} - 75 {H}^{2} = 3 \left({K}^{2} - 25 {H}^{2}\right) = 3 \left(K - 5 H\right) \left(K + 5 H\right)$.