#Q9 Binomial Expansion
19 messages · Page 1 of 1 (latest)
Pyxis INSTA
has coefficient of x^2 =7
Coefficient of x^4 =
Where’s this one come from?
the general term of (a+b)^n is nCr (a)^(n-r) (b)^r
so for creating x^2 we create appropriate term(s)
19 messages · Page 1 of 1 (latest)
Not sure how to start as not taught the same way as written answers
Pyxis INSTA
has coefficient of x^2 =7
Coefficient of x^4 =
Where’s this one come from?
the general term of (a+b)^n is nCr (a)^(n-r) (b)^r
so for creating x^2 we create appropriate term(s)