Y2CH4 Binomial Expansion

Question 1

When is (1+x)^n used?

Answer 1

With fractions or negative numbers as n

Question 2

When you make (4+x)^n into (1+x)^n what must you do?

Answer 2

Factor out the 4, into 4^n and divide the x by 4 becoming x/4

Question 3

When may you use this type of binomial expansion?

Answer 3

For partial fractions