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Mathematics 14 Online
OpenStudy (anonymous):

Use binomial theorem to expand (d-3b)^3 a.d^3+3d^2b+3db^2+b^3 b.d^3-9d^2b+27db^2+27b^3 c.d^3-9d^2b+27db^2-27b^3 d.d^3-3d^2b+3db^2-b^3

OpenStudy (anonymous):

Familiar with Pascal's Triangle?

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