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Mathematics for IGCSE & O level - Algebraic Manipulation (Section 2 - No. 46)

What is the expanded form of (4x - 3)(2x + 1)?
8x² + 2x - 3
8x² - 2x - 3
8x² - 6x - 3
8x² + 10x - 3

설명

(4x-3)(2x+1) = 8x²+4x-6x-3=8x²-2x-3

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