use deMoivre's theormen to find the indicated power of the complex number:

2(sqrt3 +2i)^4

what do I do with the 2 in front??

without 2 in front:

r=sqrt(3+4) = sqrt7

tan-1 (2/sqrt3) = 49.1

(sqrt7)^4 (cos(4*49.1) + i (sin(4*49.1)) )

what do I do with the 2????