Factorise :- 27 – 125a^3 – 135a + 225a^2 - Mathematics

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Factorise :- 27 – 125a3 – 135a + 225a2 

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Solution

27 – 125a3 – 135225a2 33 – (5a)3 – 3(3)2(5a3(3)(5a)2

                                         = (– 5a)3

                                         = (– 5a)(– 5a)(– 5a)

Concept: Algebraic Identities
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Chapter 2: Polynomials - Exercise 2.5 [Page 49]

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NCERT Class 9 Maths
Chapter 2 Polynomials
Exercise 2.5 | Q 8.3 | Page 49

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