Question

Х(t)=5t3+3. t=4
Помогите решить дз

Answer 1

Х(4)= 5*4*3 + 3= 63
......................

Answer 2

x ( t ) = 5t³ + 3 
t = 4 
x ( 4 ) = 5 * 4³ + 3 = 5 * 64 + 3 = 320 + 3 = 323