8 - binomial expansion
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4 Terms
1
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how to find the coefficients (quicker way than pascal’s triangle)
combinations
nCr
2
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how to do find combinations
n = total power
r = which term number it is (not including the ones with just one letter)
use formula booklet equation
3
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quicker way to find combination
use cg50:
option
prob
nCr
then type the value n and the value r respectively, with the letter C in the middle
4
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what happens to powers in binomial expansion
powers of a increase
powers of b decrease
always add to total power
Note 
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