Question

Use the Binomial Theorem to expand the binomial. (d-4b)^3

my work: By using Pascal's Triangle I got (d)^3-3(d)^2(-4b)^1-3(d)^1(-4b)^2

Did I do this correctly?

Answer 1

Did I?

Answer 2

you're missing a term
(-4b)^3

Answer 3

and that would be at the end?

Answer 4

also, they're added, not subtracted

Answer 5

Alright. Why is that?

Answer 6

any negative signs would come from (-4b)^n

Answer 7

(d)^3+3(d)^2(-4b)1+3(d)^1(-4b)^2+(-4b)^3

Answer 8

It would look like that??

Answer 9

yes

Answer 10

now simplify it

Answer 11

Alright! I get it now! Thank you for your help(: