Find $|9i-12|\cdot |3+4i|$.
from sympy import I, re, im, sqrt

eq_1 = -12 + 9*I
eq_2 = 3 + 4*I

length_1 = sqrt( re(eq_1)**2 + im(eq_1)**2 )
length_2 = sqrt( re(eq_2)**2 + im(eq_2)**2 )

answer = length_1 * length_2

print(answer)