expand (x-1)^3 OR (x-9)^4?

1 ⤊

expand (x-1)^3 OR (x-9)^4?

I have to take a test , and I forgot how to expand expressions like these:
(x-1)^3
OR
(x-9)^4
OR
(x+3)^3

I will have a ti-84 with me on the test; I am looking for the easiest solution to rapidly expand these terms.

2007-02-23 13:31:10 · 3 answers · asked by RogerDodger 1 in Science & Mathematics ➔ Mathematics

3 answers

Use the binomial theorem for quick work.

To view how this works, go to:

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

Guido

2007-02-23 13:43:02 · answer #1 · answered by Anonymous · 1⤊ 0⤋

Use the binomial theorem, with Pascal's Triangle, to simplify these expansions.

2007-02-23 13:39:40 · answer #2 · answered by fcas80 7 · 0⤊ 0⤋

x^3-1^3 I'm pretty sure!

2007-02-23 13:40:18 · answer #3 · answered by Anonymous · 0⤊ 0⤋