Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 9th
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Factorise the following: 3a² – 24ab + 48b² - Mathematics

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Sum

Factorise the following:

3a² – 24ab + 48b²

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Solution

3a2 – 24ab + 48b2 = 3[a2 – 8ab + 16b2]

= 3[a2 – 2 × a × 4b + (4b)2]

= 3(a – 4b)2 ...[a2 – 2ab + b2 = (a – b)2]

Concept: Factorisation Using Identity a2 - 2ab + b2 = (a - b)2
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APPEARS IN

Tamil Nadu Board Samacheer Kalvi Class 9th Mathematics Answers Guide
Chapter 3 Algebra
Exercise 3.5 | Q 2. (ii) | Page 105
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