El profesor se sorprenderá mucho al ver tu solución correcta😉
4 3 / ___\ / ___\ 2 / ___\ x + x *\6 + 2*\/ 3 / + \13 + 12*\/ 3 /*x - \12 + 18*\/ 3 /*x + 36 = 0
x1 = -5.3042191176325 - 4.12210331773816*i
x2 = 0.572168310063625 - 0.685843466682616*i
x3 = 0.572168310063625 + 0.685843466682616*i
x4 = -5.3042191176325 + 4.12210331773816*i
x4 = -5.3042191176325 + 4.12210331773816*i