English

Multiply: 3a + 4b − 5c and 3a

Multiply:

3a + 4b − 5c and 3a

Sum

(3a + 4b − 5c) × 3a

= (3a × 3a) + (4b × 3a) − (5c × 3a)

= 9a²+ 12ab − 15ac

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Chapter 14: Fundamental Concepts (Including Angles and their Properties) - Exercise 19 (C)

Chapter 14 Fundamental Concepts (Including Angles and their Properties)
Exercise 19 (C) | Q 6.1

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