Question 63553
<b>Use Pascal's Triangle to expand each binomial.
(x-3)^3</b>

Here's some of Pascal's Triangle:

1
1 1
1 2 1
1 3 3 1

This 4th row is what we need to expand {{{(x-3)^3}}} which is:

{{{x^3+3x^2(-3)+3x(-3)^2+(-3)^3 = x^3-9x^2+27x-27}}}.