Question

what is the middle term in the expansion (x+3)^6

Answer 1

do you have the cheat list for paschal's theories....that would be right there

Answer 2

no ):

Answer 3

one min...

Answer 4

..uhmm

Answer 5

http://www.purplemath.com/modules/binomial.htm

Answer 6

sry....okay look at the triangle and count down to line 6....that would show you the equation

Answer 7

i dont understand ):

Answer 8

plugging in from the website...
x^6 + 18x^5 + 135x^4 + 540x^3 + 1215x^2 + 1458x + 729
so middle term is 540x^3

Answer 9

The first example is similar to your problem. not sure of how your teacher taught you