K kathy's New member Joined Dec 20, 2005 Messages 47 Mar 17, 2007 #1 okay the question is as follows: determine the coefficient of the middle term in the expanxion of (2x-3)^ 10 n/2 = 10/2 = 5 10C5 (2x)^10-3 (-3)^5 = 252(128X^5)(243) = 7838208x^5 is this correct? thanks in advance!?
okay the question is as follows: determine the coefficient of the middle term in the expanxion of (2x-3)^ 10 n/2 = 10/2 = 5 10C5 (2x)^10-3 (-3)^5 = 252(128X^5)(243) = 7838208x^5 is this correct? thanks in advance!?
G galactus Super Moderator Staff member Joined Sep 28, 2005 Messages 7,203 Mar 17, 2007 #2 No. It's not. Try this: \(\displaystyle \L\\C(10,5)(2x)^{5}(-3)^{5}\)