Binomial Theorem question 2 (1 Viewer)

[NizDiz]

Determine term independent of x in;

(2 + 3x - 4x^2) (2 - 1/x)^3

(You may wish to expand (2 - 1/x)^3 )

 

[braintic]

Find the term independent of x in (2-1/x)^3 then multiply by 2

Not correct.

Find the term independent of x in (2-1/x)^3 then multiply by 2.
ADD the term in 1/x in expansion of (2-1/x)^3 multiplied by 3
ADD the term in 1/x^2 in expansion of (2-1/x)^3 multiplied by -4

 

[AnimeX]

Not correct.

Find the term independent of x in (2-1/x)^3 then multiply by 2.
ADD the term in 1/x in expansion of (2-1/x)^3 multiplied by 3
ADD the term in 1/x^2 in expansion of (2-1/x)^3 multiplied by -4

yup, this