Question

factorise using suitable identities:
(a+b)³(c+d)-(c+d)³(a+b)
plzzz give the correct solution otherwise I will report this answer ...
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Answer 1

Answer:

$\left(a+b\right)^3\left(c+d\right)-\left(c+d\right)^3\left(a+b\right)\\= a^3c+3a^2bc+3ab^2c+b^3c+a^3d+3a^2bd+3ab^2d+b^3d-\left(c+d\right)^3\left(a+b\right)\\= a^3c+3a^2bc+3ab^2c+b^3c+a^3d+3a^2bd+3ab^2d+b^3d-\left(c+d\right)^3\left(a+b\right)-3bc^2d-3bcd^2-bd^3$

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