Expand : ( 5a - 3b + C )2

Expand : ( 5a - 3b + c )²

Sum

( 5a - 3b + c)² = (5a)² + (3b)² + (c)² - 2(5a)(3b) - 2(3b)(c) + 2(c)(5a)

= 25a² + 9b² + c² - 30ab - 6bc + 10ca

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Expansion of Formula

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Chapter 4: Expansions (Including Substitution) - Exercise 4 (C) [Page 62]

Chapter 4 Expansions (Including Substitution)
Exercise 4 (C) | Q 3.3 | Page 62

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