Question

(x-5)^5
expand the following using either the binomial theorem or pascals triangle

Answer 1

I gather you know either?

Answer 2

no i dont

Answer 3

ok,, then you may want to check http://www.youtube.com/watch?v=1pSD8cYyqUo

Answer 4

okay i watched, what is the answer?

Answer 5

\(\bf (x-5)^5 \\\implies x^5+\square x^4(-5^1)+\square x^3(-5^2)+\square x^2(-5^3)+ \square x^1(-5^4)+(-5^5)\)

notice the exponents, for the 1st term are DESCENDING from 5 down to 0
for the 2nd term are ASCENDING, from 0 to 5

from there you can get the coefficients

Answer 6

what do the boxes represent???