Determine K:

a:12! b:65!+64!+63!=k^2*963!
-- =k
10!
c:(k+5)!=(k^2+196)(k+3)!

Determine K:

a:12!
-- =k
10!
b:65!+64!+63!=k^2*963!

c:(k+5)!=(k^2+196)(k+3)!