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Mathematics 7 Online
OpenStudy (anonymous):

Use the Binomial Theorem to expand the binomial

OpenStudy (alexandervonhumboldt2):

which

OpenStudy (anonymous):

\[(d-4b)^3\]

OpenStudy (alexandervonhumboldt2):

d^3+3*4*4*b-3*4*b*b+b^3

OpenStudy (alexandervonhumboldt2):

simplify now

OpenStudy (anonymous):

\[d^3+48b-12b^2+b^3\]

OpenStudy (alexandervonhumboldt2):

uh think so

OpenStudy (anonymous):

How did you get it in that form? How do you know how to right it like that?

OpenStudy (alexandervonhumboldt2):

(a-b)^3=a^3+3a^2b-3ab^2+b^3

OpenStudy (anonymous):

Oh okay thanks!

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