Question

Factorise 8 − 27a3 – 36 + 54a2

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Answer 1

Answer:

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Answer 2

Factorise 8 − 27a3 – 36 + 54a2

Solution- 8-27a3-36+54a2

Group the terms

(2)3 -(3a)3 -3×2×3a(2a-3a)

(2)3-(3a)3 - 18a (2-3a)

(2-3a)3 is the right solution