Question

Determine o valor de P4 x A2,1 + C4,4

Answer 1

$P_4=4*3*2*1=24\\ \\ A_{2,1}=\frac{2!}{(2-1)!}=2\\ \\ C_{4,4}=\frac{4!}{(4-4)!4!}=1\\ \\ P_4*A_{2,1}+C_{4,4}=24*2+1=48+1=49$