Find the coefficient of x3 in the expansion of (1-2x+3x2-4x3)

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
what is value of n in this expansion?
  • 1
n = 1/2
  • 0
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