SOLUTION: Use Pascal's Triangle to expand each binomial. (x-3)^3

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Question 63553: Use Pascal's Triangle to expand each binomial.
(x-3)^3
Answer by joyofmath(189) About Me  (Show Source):
You can put this solution on YOUR website!
Use Pascal's Triangle to expand each binomial.
(x-3)^3
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 %28x-3%29%5E3 which is:
x%5E3%2B3x%5E2%28-3%29%2B3x%28-3%29%5E2%2B%28-3%29%5E3+=+x%5E3-9x%5E2%2B27x-27.