Find the coefficient of x3 in the expansion of (1-2x+3x2-4x3) Share with your friends Share 1 Lovina Kansal answered this Dear student As per your comments n=12Then (1-2x+3x2-4x3)12=2-x3-3-x34x+23-x364x2-59-x3512x3-.....which is in the complex form.Please recheck your question and get back to us with complete question. Regards Regards -1 View Full Answer Mamta Goyal answered this what is value of n in this expansion? 1 Soumyadeep Kar answered this n = 1/2 0