Question

27m³-216n³ factorise the following

Answer 1

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Answer 2

Answer:

27m³-216n³=

Formula= a³-b³=(a-b)(a²+ab+b²)

=3m³-6n³=(3m-6n)[3m²+3m×6n+6n²]

=(3m-6n)(9m²+18mn+36n²)