Hellow guys, Welcome to my website, and you are watching Permutation. Solve for n. P(n, 4) = 40[P(n-1, 2)]. and this vIdeo is uploaded by Ms Shaws Math Class at 2020-10-11T15:08:06-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.