Question

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Answer 1

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Answer 2

Answer:(i)27a³+64b³+108a²b+144ab²

(ii)125p³-27q³-225a²b+135pq²

Step-by-step explanation:(i)(3a+4b)³

Using identity--(a+b)³=a³+b³+3a²b+3ab²

=(3a)³+(4b³)+3(3a)²(4b)+3(3a)

(4b)²

=27a³+64b³+108a²b+144ab²(Ans.)

(ii)(5p-3q)³

Using identity--

(a-b)³=a³-b³-3a²b+3ab²

=(5p)³-(3q)³-3(5p)²(3q)+3(5p)(3q)²

=125p³-27q³-225a²b+135pq²(Ans.)

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