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Mathematics for IGCSE & O level - Algebraic Manipulation (Section 5 - No. 42)

Which of the following is the simplified form of -4(2x - 1)?
-8x - 4
-8x + 4
8x - 4
8x + 4

Explication

-4 * 2x + -4 * -1 = -8x + 4

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