Mathematics for IGCSE & O level - Algebraic Manipulation (Section 3 - No. 47)

What is the expanded form of (3x - 4)(x + 2)?

3x² - 2x - 8

3x² - 10x - 8

3x² + 2x - 8

3x² + 10x - 8

解释

(3x-4)(x+2)=3x²+6x-4x-8=3x²+2x-8

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