Multiplicar Polinômios:

def Polynomia_Mult(P,c):
    R=[]
    for i in range( len(P) ):
        R.append(  P[i]*c  )
            
    return R

def Polynomias_Mult(P,Q):
    degree=len(P)+len(Q)-1
    
    R=[]
    for i in range( degree ):
        R.append(0.0)
        
    for i in range( len(P) ):
        for j in range ( len(Q) ):
            R[i+j]+=P[i]*Q[j]
    return R