English

Multiply: − X + Y − Z and − 2x

Multiply:

− x + y − z and − 2x

Sum

(− x + y − z) × −2x

= − x × − 2x + y × − 2x − z × − 2x

= 2x² − 2xy + 2xz

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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 5.1

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